## Vincent Knight

I'm a Third Culture Kid currently working as a lecturer in Operational Research at Cardiff University

Occupation: Lecturer at Cardiff University, School of Mathematics

Birthday: 02/14

Followers: 25,507

Following: 0

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### Vincent Knight has been shared in 176 public circles

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Tancredi Matranga9,123WEB INFLUENCER MEGAMIX 13Have a Great Tuesday my Google+ Friends!I am happy to share with you my 13th  #sharedcircle named Web Influencer Megamix.I put together a mix of #TopEngagers  - Really Interesting People who share unique and original content.   Do yo want to be added to the Web #Influencer Circle?To be included, be so kind to:   1 - Do +1 t the post   2 - Comment the post and specify your "category" (job or interest)         (ex: fashion, photography, seo, social media marketing)   3 - Include the circle among your circles   4 - Share the circle (include yourself)   5 - Be free and smile to life! :)   #circles #sharedcircles #addcircle #sharedpubliccircles #growfollowers #circleshare #publicsharedcircles #circleoftheweek #circlesharing #publiccircle #findcircles #circlemeup #influencers #influencer #influence #influencermarketing #sharedcircle #circletuesday   #tuesdaycircle   #tuesdaycircleshare   #tuesdaycircleshare  ﻿2013-12-03 07:43:174999952105
Fabian Weiland761#sharedcircle #sharedcircles #science #scientists  ﻿2013-12-02 14:10:58296000
Jay Beek854Another round of #topengagers  !(Be sure to click READ MORE, it is important if you want to be included in this circle next time)These people shareThese people +1These people create original contentThese people make G+ BetterIf you add this circle, you will, without a doubt, see your engagement soar through the roof.  Guaranteed.  If you were notified, you guessed it, you are already in.To be included in the NEXT top engagers circle this week is easier than ever.1.) Follow me2.) Share this post3.) Keep engaging#sharedcircle   #sharedcircles   #sharecircle   #publiccircle   #publiccircles   #publicsharedcircles   #topengagers   #engagers   #snowballcircle   #snowball   #circles   #circleshare   #circlemasters   #circlemaster   #circlequeen   #crazycircles   #circlehub   #morefollowers #ghosttown ﻿2013-11-25 15:25:43501607
Jay Beek854Add these top engagers !#sharedcircle   #sharedcircles   #sharecircle   #publiccircle   #publiccircles   #publicsharedcircles   #topengagers   #engagers   #snowballcircle   #snowball   #circles   #circleshare   #circlemasters   #circlemaster   #circlequeen﻿2013-11-25 05:50:10501327
Jay Beek854Another round of #topengagers  !(Be sure to click READ MORE, it is important if you want to be included in this circle next time)These people shareThese people +1These people create original contentThese people make G+ BetterIf you add this circle, you will, without a doubt, see your engagement soar through the roof.  Guaranteed.  If you were notified, you guessed it, you are already in.To be included in the NEXT top engagers circle this week is easier than ever.1.) Follow me2.) Share this post3.) Keep engaging#sharedcircle   #sharedcircles   #sharecircle   #publiccircle   #publiccircles   #publicsharedcircles   #topengagers   #engagers   #snowballcircle   #snowball   #circles   #circleshare   #circlemasters   #circlemaster   #circlequeen   #crazycircles   #circlehub   #morefollowers #ghosttown ﻿2013-11-25 04:35:04405436
Jay Beek854Another round of #topengagers  !(Be sure to click READ MORE, it is important if you want to be included in this circle next time)These people shareThese people +1These people create original contentThese people make G+ BetterIf you add this circle, you will, without a doubt, see your engagement soar through the roof.  Guaranteed.  If you were notified, you guessed it, you are already in.To be included in the NEXT top engagers circle this week is easier than ever.1.) Follow me2.) Share this post3.) Keep engaging#sharedcircle   #sharedcircles   #sharecircle   #publiccircle   #publiccircles   #publicsharedcircles   #topengagers   #engagers   #snowballcircle   #snowball   #circles   #circleshare   #circlemasters   #circlemaster   #circlequeen   #crazycircles   #circlehub   #morefollowers #ghosttown ﻿2013-11-25 03:13:13501103
Jay Beek854Another round of #topengagers  !(Be sure to click READ MORE, it is important if you want to be included in this circle next time)These people shareThese people +1These people create original contentThese people make G+ BetterIf you add this circle, you will, without a doubt, see your engagement soar through the roof.  Guaranteed.  If you were notified, you guessed it, you are already in.To be included in the NEXT top engagers circle this week is easier than ever.1.) Follow me2.) Share this post3.) Keep engaging#sharedcircle   #sharedcircles   #sharecircle   #publiccircle   #publiccircles   #publicsharedcircles   #topengagers   #engagers   #snowballcircle   #snowball   #circles   #circleshare   #circlemasters   #circlemaster   #circlequeen   #crazycircles   #circlehub   #morefollowers #ghosttown ﻿2013-11-25 00:30:29405004
Jay Beek854Another round of #topengagers  !(Be sure to click READ MORE, it is important if you want to be included in this circle next time)These people shareThese people +1These people create original contentThese people make G+ BetterIf you add this circle, you will, without a doubt, see your engagement soar through the roof.  Guaranteed.  If you were notified, you guessed it, you are already in.To be included in the NEXT top engagers circle this week is easier than ever.1.) Follow me2.) Share this post3.) Keep engaging#sharedcircle   #sharedcircles   #sharecircle   #publiccircle   #publiccircles   #publicsharedcircles   #topengagers   #engagers   #snowballcircle   #snowball   #circles   #circleshare   #circlemasters   #circlemaster   #circlequeen   #crazycircles   #circlehub   #morefollowers #ghosttown ﻿2013-11-24 16:58:13405005
Jay Beek854Another round of #topengagers  !(Be sure to click READ MORE, it is important if you want to be included in this circle next time)These people shareThese people +1These people create original contentThese people make G+ BetterIf you add this circle, you will, without a doubt, see your engagement soar through the roof.  Guaranteed.  If you were notified, you guessed it, you are already in.To be included in the NEXT top engagers circle this week is easier than ever.1.) Follow me2.) Share this post3.) Keep engaging#sharedcircle   #sharedcircles   #sharecircle   #publiccircle   #publiccircles   #publicsharedcircles   #topengagers   #engagers   #snowballcircle   #snowball   #circles   #circleshare   #circlemasters   #circlemaster   #circlequeen   #crazycircles   #circlehub   #morefollowers #ghosttown ﻿2013-11-24 16:28:32501204
Kyle Pearce190A great Google+ Circle of Educators!  ﻿2013-11-24 15:10:12501606
Jay Beek854Another round of #topengagers  !(Be sure to click READ MORE, it is important if you want to be included in this circle next time)These people shareThese people +1These people create original contentThese people make G+ BetterIf you add this circle, you will, without a doubt, see your engagement soar through the roof.  Guaranteed.  If you were notified, you guessed it, you are already in.To be included in the NEXT top engagers circle this week is easier than ever.1.) Follow me2.) Share this post3.) Keep engaging#sharedcircle   #sharedcircles   #sharecircle   #publiccircle   #publiccircles   #publicsharedcircles   #topengagers   #engagers   #snowballcircle   #snowball   #circles   #circleshare   #circlemasters   #circlemaster   #circlequeen   #crazycircles   #circlehub   #morefollowers #ghosttown ﻿2013-11-24 08:00:39405104
Jay Beek854#sharedcircle   #sharedcircles   #sharecircle   #publiccircle   #publiccircles   #publicsharedcircles   #topengagers   #engagers   #snowballcircle   #snowball   #circles   #circleshare   #circlemasters   #circlemaster   #circlequeen   #crazycircles   #circlehub   #morefollowers #ghosttown﻿2013-11-24 06:33:32405004
Jay Beek854This group will follow back !#sharedcircle   #sharedcircles   #sharecircle   #publiccircle   #publiccircles   #publicsharedcircles   #topengagers   #engagers   #snowballcircle   #snowball   #circles   #circleshare   #circlemasters   #circlemaster   #circlequeen   #crazycircles   #circlehub   #morefollowers #ghosttown﻿2013-11-24 01:22:28405003
Jay Beek854Here's the latest update of my Engagers circle. The last version of this circle was close to full, so I started it again from scratch. This circle includes people who have recently engaged with one of my posts in the form of +1s, comments and public reshares.I might have missed some people because of limitations of the Google+ interface. Fortunately, the next release of +Circloscope on June 28 is likely to include new features that make circles like this one much easier to create.I've included 100 guest members in this circle, taken from my Favourites circle, which I haven't shared in a while.Like my previous circle share, this is a Showcase circle! What this means is that everyone is invited to leave a comment on (the original post of) this circle share containing a link to one of your own posts. Ideally, this should be something that you posted recently and that you are particularly pleased with. (Don't post spam though; I will delete it.)﻿2013-11-24 00:22:24405013
Lo Sauer5,146This is a great circle combined of active engagers, creative folks and  some of the best and brightest people on google+. A thank you in this circle-inclusion-shoutout to: +Peter Terren +Michael Műller +Carlos Esteban +Justin Chung +Malthus John +Marta Rauch +Rajini Rao +Katherine Vucicevic +Jonathan Eisen +Mike Allton +Scott Buehler +Mario Falcetti +Zvonimir Fras +Krithika Rangarajan +sridhar krishnan +Joanna Ortynska +Seamus Smyth +Chuck Croll +Michael Schobel +2013-11-19 18:19:4843218518
STEM on Google+ Community10,829Movers & Shakers in the STEM Community!Here's the latest updated edition of people & pages whose posts and comments have appeared in the +STEM on Google+ Community and page.  There are both content creators and content readers here, and they are all active and interested in Science, Technology, Engineering, and/or Math.  Add this circle to your stream!Click here to join the community >>https://plus.google.com/b/112166434848553337850/communities/110555615319066448343 #sciencecircle   #STEM   #curatedcontent   #publicsharedcircles   #newtogoogleplus  ﻿2013-11-04 15:26:49280312048
Rank Kemeng245This is a group of individuals that has personally shared four of my best circle sharing circles in the last month (or so).  They also include a mix of new circle sharers and some that are just trying to learn it for the first time. :) :) :0)They are individuals, to a large degree, that are very interested in not just circle sharing (which is great), but also engaging with you in a meaningful way (which is awesome)!!!Guidelines for Core Multipliers- Share the circle to stay in the circle- Have some fun!- If you are new and want in the circle, share the circle.This is a great group.  Enjoy this circle and have an awesome Thursday!*if you were somehow missed/ not included in the circle, please let me know and it will be corrected on the next share. My apologies ahead of time! :)**For those coming from multiplying circle, we are not inviting new folks here, you can privately message them or ping them when you share the circle on your public feed. Thanks!#corecircle #multiplyingcircle #coremultipliers #sharedcircles #circleshare #bestsharedcircle   #circleshare   #sharedcircles   #circleoftheday   #CircleQueen   #CircleMaster   #GPlusList   #Circle   #Circleshare   #Circlesharing   #PublicSharedCircles﻿2013-11-01 15:53:38426115
Silvio De Rossi8,543It's dance time! #saturdaynight  Circle! :DThis is my first #sharedcircle of #topengagers, a group of interesting people who share unique and original content.What are you waiting to add them to your circles? :)To be included in my shares (#sharedcircle), be so kind to:1) Do +1 t the post2) Comment the post and specify your "category" (ex: fashion, photography, seo, social media marketing)3) Include the circle among your circles4) Share the circle (include yourself)5) Smile to life, sun in sunshine.Special thanks my dear #friends and #followers:+Raffaele Romeo Arena  +Tancredi Matranga +Alessandro Folghera +Christine DeGraff +Viktor Mulin +Cesare Riccardo Have a good life!#topsharedcircle   #facciamolastoria   #leonardo   #deroplus   #circleoftheday   #sharedcircle   #topsharedcircle   #sharedcircleoftheday   #myseoissocial   #besocial   #socializethesocial  #trust #circles  #circleshare  #sharedcircle   #circlesharing   #followers   #social   #socialnetworking   2013-10-26 19:28:02457531238
Coyeb Sundel2,9242013-10-24 10:04:35425202
Raffaele Romeo Arena9,957Welcome my dear #friends and #follower this is #thursdaycircle #topengagers  This circle is very important because it's composed of many important peolple, that often #interact with me and our community.You remember that #social  is   #sharedlife  and #follow is #friendship  . And so:-include me in your circles-create a large network-shared the circle (include yourself)-add +1 to the post-interact will allow you to enter the great circle that soon will share-happy life and sun is sunshine.Special thanks, to my #friends  and #followers  :+Alessandro Folghera +Mario Falcetti +Cesare Riccardo +Edith Kukla +Dominique Keller +Viktor Mulin +Silvio De Rossi +Tancredi Matranga +Tazein Mirza Saad +Fashion Circles #circles   #circleshare   #sharedcircle #circlesharing   #follower #socialnetworking2013-10-24 09:20:30459623668
Circle Construct #circleconstruct5,176A little room to add yourself. Please public share, because if you are not in this circle, that is how you will get included into future circles somewhere. ﻿2013-10-22 08:23:1946613934
Raffaele Romeo Arena9,957#mondaysharedcircle in your #circle #seocircle #fashioncircle This #circle includes important followers to affirm a strong #community getting bigger. Join the community and shareTo be included in my shares (#sharedcircle), be so kind to:1 - Do +1 t the post2 - Comment the post and specify your "category" (job or interest)  Ex: Fashion, SEO, Companies, Social Media Marketing, Sailing, Photography, Bloggers/Writers, Web graphics and design, Italy, Artists, Sport, Finance/Economy ...3 - Include the circle among your circles4 - Share the circle (include yourself)If you come accross Google error messages, incorporating my circles, please provide me the error, I'm classifying these errors. Have a wonderful Monday and all week; and a better popularityMost important: Keep yourself updated, enjoy the Shared Circles Hellenic Alliance, you can share your shared circles inside the upcoming Community:https://plus.google.com/communities/112552559573595396104Special thaks to my friend and special follower:+Alessandro Folghera+Viktor Mulin+Fashion Circles+Scott Buehler+Sam Stormborn Ormandy+Владимир Самсонов+Ludovic Moreeuw+Dominique Keller+Tancredi Matranga+Silvio De Rossi+Edith Kukla+2013-10-14 20:44:30460201034
Tiberiu Igrisan2,988Science (part 1)#science #sciencecircle #sharedcircles  ﻿2013-10-14 18:53:04257123
Fabian Weiland761#sharedcircle #sharedcircles #health #wellness  ﻿2013-10-14 15:30:25243000
Christy Sandhoff22,476Daniel Mihai Popescu originally shared: The Latest is a circle with a lot of members borrowed from +Richard Green's last Showcase Circle share, my Invincible and a few rewards :)Please share it, add it, make yourself comfortable :)#danielmihaipopescusharedcircle It is not a final form, in less than a week it will change, so hurry up my friends and future friends :)If you're notified, you're in!﻿2013-10-10 17:14:34405271240
James Steward4,649These are awesome scientist friends who comment my posts#scientistcirle #circle #circleshared #sharedcircle #circleoftheday #followfriday﻿2013-10-10 16:30:23414103
James Steward4,649These are awesome scientist friends who comment my posts#scientistcirle #circle #circleshared #sharedcircle #circleoftheday #followfriday﻿2013-10-10 16:29:55414013
James Steward4,649These are awesome scientist friends who comment my posts#scientistcirle #circle #circleshared #sharedcircle #circleoftheday #followfriday﻿2013-10-10 16:29:39414002
James Steward4,649These are awesome scientist friends who comment my posts#scientistcirle #circle #circleshared #sharedcircle #circleoftheday #followfriday﻿2013-10-10 16:29:27414002
James Steward4,649These are awesome scientist friends who comment my posts#scientistcirle #circle #circleshared #sharedcircle #circleoftheday #followfriday﻿2013-10-10 16:29:04414002
James Steward4,649These are awesome scientist friends who comment my posts#scientistcirle #circle #circleshared #sharedcircle #circleoftheday #followfriday﻿2013-10-10 16:28:49414002
James Steward4,649These are awesome scientist friends who comment my posts#scientistcirle #circle #circleshared #sharedcircle #circleoftheday #followfriday﻿2013-10-10 16:28:32414001
James Steward4,649These are awesome scientist friends who comment my posts#scientistcirle #circle #circleshared #sharedcircle #circleoftheday #followfriday﻿2013-10-10 16:27:59414007
James Steward4,649These are awesome scientist friends who comment my posts#scientistcirle #circle #circleshared #sharedcircle #circleoftheday #followfriday﻿2013-10-10 16:27:36414003
James Steward4,649These are awesome scientist friends who comment my posts#scientistcirle #circle #circleshared #sharedcircle #circleoftheday #followfriday﻿2013-10-10 16:27:16414002
James Steward4,649These are my awesome scientist friends who comment my posts#scientistcirle #circle #circleshared #sharedcircle #circleoftheday #followfriday﻿2013-10-10 16:25:57414103
Daniel Mihai Popescu26,117The Latest is a circle with a lot of members borrowed from +Richard Green's last Showcase Circle share, my Invincible and a few rewards :)Please share it, add it, make yourself comfortable :) #danielmihaipopescusharedcircle It is not a final form, in less than a week it will change, so hurry up my friends and future friends :)If you're notified, you're in!﻿2013-10-09 17:09:12413815078
Raffaele Romeo Arena9,957Astonishing #topengagers   Happy  #Tuesday my #friends , and you are welcome in my #tuesdaycircle A nice group of people who I found to share and comment my posts, and have as a goal to grow our #community.And so, after difficult day on #Monday we are to enjoy on Tuesday in #fashionstyle To be included in my shares (#sharedcircle), be so kind to:1 - Do +1 t the post2 - Comment the post and specify your "category" (job or interest)      (ex: fashion, photography, seo, social media marketing)3 - include the circle among your circles4 - share the circle (include yourself)5 - Plus and share the new important #fashionprofile https://plus.google.com/u/0/b/101905178080519621345/101905178080519621345/posts5 - smile to life, sun in sunshine.Thanks to all of you who are part of my circles and those who will be part of, in particular, I thank my #friends and #followers :+Alessandro Folghera+Alfredo Torres+Dirk Talamasca+Viktor Mulin+Cesare Riccardo+Mario Falcetti+Владимир Самсонов+Dominique KellerHave a wonderful weekend and increasing your #popularity and your #circles#topsharedcircle   #circleoftheday   #sharedcircle   2013-10-08 08:07:37463571960
Crazy Circles0The Phenomenal Ones Beautiful pictures, deep or funny thoughts, interesting news, good music, friendship and fruitful discussions: this is what will give you the Phenomenal Ones,  a circle of brilliant people who turn everyday Google+ to an awesome place! ;))﻿2013-10-07 22:25:16450141112156
Fraser Cain846,344Super Science Circle for October, 2013I know it's been a while, so it's time for a new Super Science Circle - the October 2013 edition.In case you weren't aware, the Super Science Circle is a list of more than 400 people who are actively engaged on Google+ and regularly post about science and education. We've got journalists, scientists, even a few astronauts. The Super Science Circle should be your best response to anyone who tells you that Google+ is just a ghost town. If you love science, this circle will deliver the goods.If you know anyone who actively posts about science, please let me know and I'll add them to the list.﻿2013-10-04 20:14:53415294383
Rodolfo Grimaldi Blog6,859A Second Circle based on a combination of +Richard Green's and my favorites :) ( +Daniel Mihai Popescu )It is a free circle, it's not it's final form, so add it, do whatever you consider to do with it, because there is a lot of space here :) #danielmihaipopescusharedcircle I like the relevance on the cover :)You are notified, dear friends and future friends :)﻿2013-10-01 19:13:49408582255
Circle Construct #circleconstruct5,176To You, When you are not comfortable with circles here is exactly what to do....1. Name the Circle and save the #circle .2. Give the circle creator credit #circleconstruct   3. Give credit to who shared the circle with you #circleconstruct   4. Add yourself to the circle. 5. Share the circle public, all your circles, or specific people who would      benefit from the people in the circle. 6. Say thank you in the stream. (comments)7. Let me know if you don’t wish to be in shared circles, we have          circles marked for that here so you can still receive page member  information.#circleconstruct  says you are welcome in advance.... #queenpld   #circleconstruct   #vipcirclemember    #highnumbers   #samepeople   #everycircle  ﻿2013-09-29 10:08:244681936
Raffaele Romeo Arena9,957Welcome in my #weekendcircle .You remember that #social  is  #sharedlife  and #follow is #friendship  . And so:-include me in your circles-create a large network-shared the circle (include yourself)-add +1 to the post-happy lifeSpecial thanks, to my #friends  and #followers  :+Alessandro Folghera +Mario Falcetti +Cesare Riccardo  #circles   #circleshare  #sharedcircle #circlesharing   #follower #socialnetworking   #social   #followme   #follow4followback  ﻿2013-09-13 17:59:23468472655
Matteo Pelucchi9,312Circle of #topengagers  1. Plus this post. (Original post)2. Comment on this post.3. Reshare this circle publically to your stream.4. Don’t be a blue head.Have a wonderful Wednesday increasing your #popularityTnks to +Alessandro Folghera and +Rusty Ferguson  #tuesdaysharedcircle   #topsharedcircle   #circleoftheday   #sharedcircle #trustinme  #circlesharing   #circleshare        #circles        #circleoftheday   #sharedpubliccircles     #sharedcircles    #share  #vipsnowballcircle #sharedcircleoftheday        #sharewithyou        #circlefriday   #circlethursday  #followme     #followers #followback#circle #googleplus    #coolpeople  #circleshare #sharedcircles     #sharedcircle  #sharedcircles       #sharedpubliccircles    #circleshare    #circlesharing     #fullcircleshare #circlesunday #folghera #afo     2013-09-11 07:31:19397441846
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### Activity

#### Average numbers for the latest posts (max. 50 posts, posted within the last 4 weeks):

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### Latest posts

2013-12-05 09:23:38 (0 comments, 1 reshares, 3 +1s)

Understanding student engagement with formative assessment

I've just found out that I've successfully completed the 3rd and last (for now) module of #PCUTL  (a higher education certification process that I've been doing for the past 18 months or so? <- I'm not actually sure about that...).

Here's a screencast of the presentation I gave as part of the group exercise component of this course. This presents some of the data analysis of a questionnaire we put together asking whether or not students agreed with statements like: "Non marked homework is helpful to me".

We were able to look at student attitudes across various dimensions including 'self perceived performance, self described study hours a week' etc...

I've added this video and my actual portoflio (which includes a description of my new module and a... more »

2013-12-05 08:42:37 (0 comments, 2 reshares, 7 +1s)

2013-12-05 07:51:07 (2 comments, 0 reshares, 1 +1s)

Very cool tool to find relationships between words.  It's based on an underlying model of each word as a vector in some space.  You can add and subtract these vectors, and it tells you the word that is closest to the result.

I played around with some words from the Middle East; in general, it seems a bit weak there, but still useful.  It correctly deduces, for instance, that Riyadh is the "Abu Dhabi" of Saudi Arabia.  Interestingly, the Saudi equivalent of Dubai is Jeddah.  Seems about right.

The algorithms are described here: http://arxiv.org/pdf/1309.4168v1.pdf

You can get the code here: https://code.google.com/p/word2vec/﻿

2013-12-05 07:25:54 (0 comments, 0 reshares, 1 +1s)

Was fun again to run some math  #outreach  yesterday to 17 yos.  +Vincent Knight just posted an #autoawesome  video (http://goo.gl/RV9qND) and here is a short video I took of his Game Theory session (Prisoners Dilemma tournament) which captures how much the students enjoy it with two teams who are playing next already discussing strategies at the back of the room whilst current playing teams animated about their tactics and if they can be trusted to co-operate!...﻿

2013-12-05 07:02:20 (0 comments, 0 reshares, 3 +1s)

A quick #autoawesome video of the outreach event +Paul Harper and I did yesterday.

Paul introduced epidemiology through roll playing with dice and then we showed them some game theory (some of the photos show students holding up C's and D's indicating whether or not they were cooperating in a Prisoner's Dilemma tournament).

(Paul, not sure why but my phone wasn't happy with the video... Shame :))﻿

2013-12-04 11:28:49 (0 comments, 1 reshares, 7 +1s)

Today's a transatlantic prime date. That is, if you convert the date to a number, you get a prime whether you use the American (MMDDYY) or European (DDMMYY) style because 120413 and 41213 are both prime.

There will be another transatlantic prime date in nine days, but after that there won't be another until January 16, 2017.

More along these lines here: http://www.johndcook.com/blog/2013/11/29/todays-a-prime-day/﻿

2013-12-04 11:25:09 (0 comments, 0 reshares, 1 +1s)

What do you call the 'd' in 'dx'?

My first guess was 'the derivative', or 'the differential operator', but that's definitely not right - the 'differential operator' is the whole 'd/dx' thing. And 'dx' also appears in an integral, \int x dx.

Would 'the infinitesimal' work?

Wikipedia has nothing - http://en.wikipedia.org/wiki/Derivative#Leibniz.27s_notation - and before anyone else asks: I can't find anything in Cajori about calculus notation.﻿

2013-12-04 10:00:01 (9 comments, 0 reshares, 4 +1s)

So very cool of +Jason Grout to send these two +Sage Mathematical Software System stickers :)

I found out the other day in a discussion on +Harald Schilly's post that these stickers existed. Jason said he'd send some over when he got back from his travels but in all honesty I assumed that he'd forget/was just being polite (my childish excitement at stickers shouldn't be high up anyone's list of things to take care off). But today they appeared in my pigeon hole. Thank you very much +Jason Grout: I really appreciate it.﻿

2013-12-04 08:32:37 (0 comments, 0 reshares, 5 +1s)

Just printed out the 2/3rds of the average game sheets that +Paul Harper and I will be using in our outreach session this pm.

2013-12-04 08:12:10 (0 comments, 2 reshares, 6 +1s)

+writeLaTeX just ok'd this template (http://goo.gl/UmLFr3) for last night's blog post: http://goo.gl/G8j9KT explaining how to handle  moving figures and tables in LaTeX documents :)﻿

2013-12-04 06:54:41 (0 comments, 2 reshares, 3 +1s)

Using R to replicate common SPSS multiple regression output
The following post replicates some of the standard output you might get from a multiple regression analysis in SPSS. library(foreign) # read.spss
library(psych) # describe
library(Hmisc) # rcorr
library(QuantPsyc) # lm.beta
library(car) # vif, durbin...﻿

2013-12-03 23:22:20 (4 comments, 1 reshares, 3 +1s)

How do I stop my figure moving in LaTeX?

Just written a short +writeLaTeX document explaining (my understanding) of how floats can be handled in LaTeX.

I go through the options that can be used to try and move figures and tables to the spot wanted in LaTeX. I'd suggest reading through the code for this +writeLaTeX document: https://www.writelatex.com/read/qkjpvqptqrwd and then try playing around with some options...

My attempted explanation is mainly based on this awesome stackoverflow answer: http://goo.gl/A9iJnP﻿

2013-12-03 22:18:19 (0 comments, 0 reshares, 7 +1s)

+writeLaTeX in the Christmas mood...﻿

2013-12-03 21:39:56 (0 comments, 0 reshares, 3 +1s)

Ran a quiz for the guys here this evening (http://goo.gl/0lgdxN).  Should anyone want to use them, the questions are available here (http://slid.es/paulharper/quiz-2013--2).  Some questions might have a slight UK bias although majority are universal :)

#quiz  ﻿

2013-12-03 19:26:43 (0 comments, 0 reshares, 0 +1s)

Blog Post: Do hard things

Some words of advice from one of my former students.

#IBLMath  ﻿

2013-12-03 19:05:51 (1 comments, 1 reshares, 8 +1s)

Now for the last part of the evening: a quiz hosted by +Paul Harper with +Domino's Pizza :)﻿

2013-12-03 18:23:39 (0 comments, 0 reshares, 5 +1s)

The second 'event' of this evening is by Bill Dowsland of GOAL: www.packyourpallet.com

Who is talking about some of the mathematics that they use to solve applied packing problems.﻿

2013-12-03 16:17:45 (0 comments, 0 reshares, 4 +1s)

A busy evening begins. Here's +Paul Harper kicking off the 'options' evening during which we briefly discuss the various courses available to +Cardiff Maths MSc OR/Stats students next semester.

I'll be talking about the +SAS Software and R course I designed that +Izabela Komenda will be taking.﻿

2013-12-03 14:21:28 (1 comments, 2 reshares, 3 +1s)

Happy Permutation Day, everyone!  Here's a math day that users of [almost] all date formats can enjoy.
http://mrhonner.com/archives/11676﻿

2013-12-03 08:34:19 (0 comments, 7 reshares, 14 +1s)

"Many of the projects in the scientific computing world to be very honest, are somebody's PhD, postdoc or tenure procrastination projects..." (I'm sure +PHD Comics would approve)

Watching this cool talk by +Fernando Perez of +IPython. It's been on my 'watch later' playlist for a long time...

The first 15 minutes are pretty awesome showing how Python is used in Science: including an email from +NASA to Matplolib asking when a bug would be fixed...﻿

2013-12-02 17:14:07 (0 comments, 0 reshares, 4 +1s)

Boom: just gone 1700 and I can cross of the first item on my todo list... Setting up bup took my a fair amount more time than it should have I think...

This is mainly due to the fact that I failed to install bup on our CentOS server (I couldn't seem to be able to add the necessary repositories for yum...). I ended up giving up and have bup working with rsync (to do the transfer of the files) to keep track of versioning of files...

Now for the rest of the things I had on my list...﻿

2013-12-01 16:02:53 (3 comments, 5 reshares, 9 +1s)

Revisiting my post that was revisiting +Patrick Honner's post about numerical error when plotting a function with a removable discontinuity using +Desmos :)

In his post (http://mrhonner.com/archives/11643), +Patrick Honner noticed an error caused by floating point arithmetic, I then wrote a post claiming that the same error didn't appear in +Sage Mathematical Software System. My mistake was pointed out pretty quick: I wasn't zooming enough and the same exact same error would also occur.

+Robert Jacobson then wrote some code and shared it with me on +The Sagemath Cloud that uses Sage exact arithmetic to get the plot without an error.

This post just shows it all here :) Here's a Sagecell with the code that runs in a browser: http://goo.gl/h2ax6f﻿

2013-12-01 11:20:26 (2 comments, 3 reshares, 9 +1s)

28c3: bup: Git for backups﻿

2013-11-30 17:57:18 (0 comments, 0 reshares, 6 +1s)

https://cloud.sagemath.com Sage Worksheets fully working in Russian... (by Ширшов Андрей)﻿

2013-11-30 10:55:51 (16 comments, 1 reshares, 4 +1s)

Reading through +Angelico Fetta's first couple of chapters of his thesis today...

On Linux I've found Okular as a good pdf reader/annotator: seems pretty awesome. Should I be checking anything else out?﻿

2013-11-29 14:45:55 (0 comments, 0 reshares, 6 +1s)

Made my first minor contribution/edit to +Raymond Johnson's awesome #mathed  wiki.﻿

2013-11-29 08:54:50 (5 comments, 0 reshares, 17 +1s)

Grabbing a quick coffee and reading through a PhD funding proposal that I'm a co-applicant on with +Paul Harper and a colleague from a local health board.﻿

2013-11-28 22:43:30 (1 comments, 0 reshares, 8 +1s)

Check out our new LaTeX video tutorials help section, with thanks to +Vincent Knight for his efforts in putting the video series together: https://www.writelatex.com/help/category/video_tutorials﻿

2013-11-28 20:56:22 (0 comments, 1 reshares, 5 +1s)

Google has just officially donated $60,000 of this (https://cloud.google.com/pricing/compute-engine) to be used by this (https://cloud.sagemath.com). The only catch is we have to use it up during the next 12 months. Thoughts? Anyway, this is extremely cool of Google to do, and is a great way to support Sage and web-based computational mathematics. I'll post more details when https://cloud.sagemath.com starts actually using GCE, so you can easily try it out. ﻿ 2013-11-28 17:40:41 (3 comments, 39 reshares, 48 +1s) A student came to me today asking what could be plotted when it comes to calculating the greatest common divisor (http://goo.gl/8lAQE) or lowest common multiple (http://goo.gl/GZLVC) of two numbers. This lead to me drawing a plot of$lcm(m,n)$for fixed$n\$ (I'm not sure why). After a couple of these I thought: hey I should animate that and then I remembered that +Harald Schilly (I believe) had told me that you could animate really easily using +Sage Mathematical Software System so I googled it and found: http://www.sagemath.org/doc/reference/plotting/sage/plot/animate.html

This post isn't that interesting as I'm not going to try and interpret the plot but I thought it looked kind of cool. More importantly: it's super easy to create animations in +Sage Mathematical Software System.

The code for the animation won't run on http://sagecell.sagemath.org/as... more »

2013-11-28 09:39:35 (0 comments, 1 reshares, 9 +1s)

Going to be showing some of the fun stuff that you can do with +Sage Mathematical Software System to my students.

Here's an interact that allows you to model the flight of a paper airplane and lets you keep track of your score.

The interact site: http://interact.sagemath.org/ has a bunch of great examples of snippets of code that make use of the interact tag in Sage.﻿

2013-11-27 19:47:59 (0 comments, 1 reshares, 7 +1s)

Why Aren't There More Women Making STEM Videos on YouTube?

Emily Graslie spent "an embarrassingly long amount of time just trying to think of a handful" of women who make STEM videos on YouTube.* She asked for suggestions on Twitter and got replies like "There are others besides you and Vi Hart?"

Emily found that "while there are at least 13 STEM channels hosted by men with more than 400,000 subscribers (and 7 of those 13 have topped a million subscribers), there are only four channels by women which have more than 160,000 subscribers."

Emily discusses one of the main issues: those horrible, horrible YouTube comments! (Some of the comments quoted in the video made me want to laugh and cry at the same time. lol.)

It's definitely one of the reasons I've been hesitant about making more YouTube videos of my own... more »

2013-11-27 19:34:22 (1 comments, 3 reshares, 9 +1s)

Evidently my google+ page is something that "every Ph.D. candidate should follow": http://onlinephdprogram.org/google-plus-pages/﻿

2013-11-27 11:38:39 (9 comments, 16 reshares, 22 +1s)

Calculating entropy with Python

Python truly is awesome.

Quoting from 'Prediction and Entropy of Printed English' an article published by Shannon in 1950 (http://goo.gl/EyZdFW):

"The entropy is a statistical parameter which measures in a certain sense, how much information is produced on the average for each letter of a text in the language."

Looking in to calculating entropy of text for a little project with +Robert Jacobson. I googled 'calculating entropy of text with python' and fell on to: http://goo.gl/Zzcp5E

In there is a short piece of text:

"In agreeing to settle a case brought by 38 states involving the project, the search company for the first time is required to aggressively police its own employees on privacy issues and to explicitly tell the public how to fend off privacy violations like... more »

2013-11-27 09:20:15 (4 comments, 0 reshares, 28 +1s)

Win

Taking a programming lab session this morning towards the end of an intensive teaching period during which I have 'enabled'/'forced' students to learn by themselves.

Just now I saw a student struggling with a bit of code:

Me: 'Would you like me to help with that or do you want to figure it out yourself?'
Student (with no hesitation): 'Could I figure it out myself please.'

I had to nod smile and quietly walk away while restraining myself from highfiving him... (Typing this from the back of the lab as the student is figuring it out)

This is just one of many students but it still made me really happy... ﻿

2013-11-26 20:29:12 (0 comments, 0 reshares, 4 +1s)

Neil Coles who is an awesome guy and has the official title of 'Senior Enterprise Learning Officer' at +Cardiff University blogs about including entrepreneurial skills in higher education.

He's been helping me put together the second half of a course in which our mathematics students will hopefully gain said skills.﻿

2013-11-26 10:31:37 (2 comments, 0 reshares, 2 +1s)

The classical Prisoner's dilemma with a twist. The premise sounds interesting but I am more interested in what social dynamics emerge out of this.

/cc +Vincent Knight +Paul Harper +Jacob Scott +Edward Flach +Artem Kaznatcheev ﻿

2013-11-26 10:28:49 (2 comments, 1 reshares, 11 +1s)

A busy panicked morning of writing code I don't understand comes to an end :)

Our students have been learning +Sage Mathematical Software System for the past 5 weeks or so and last week I gave them their coursework assignment which is to basically: 'Go and use Sage on something interesting'.

As a result our server crashed yesterday :)

This morning I setup limits on individual users as to how much memory they have access to (this should have really been done before but oh well). The Sage support group came to the rescue and walked me through it and it's all working now (I think).

I also think that I now understand the code I wrote...﻿

2013-11-25 20:55:31 (4 comments, 0 reshares, 15 +1s)

Using the amount of stuff that "I'll do over the Christmas break", I currently estimate said break to be about 3 months long.﻿

2013-11-25 13:08:02 (0 comments, 1 reshares, 6 +1s)

Two hours of labs and already seen a bunch of students working on learning LaTeX. This is actually a week before they're scheduled to do so but I think that using +writeLaTeX makes it really simple for them to pick up and run with.

Re-sharing the videos I put together that they're all using and that each have a link to templates.﻿

2013-11-25 09:06:25 (0 comments, 0 reshares, 6 +1s)

Using stochastic processes to study golf

I can't say I'm the biggest golf fan but this paper just got thrown at me by Google Scholar:

"The Maximum Throughput Rate for Each Hole on a Golf Course"

In this paper Whitt uses Markov chains to study 'the maximal capacity' of a golf hole.﻿

2013-11-25 08:37:22 (0 comments, 4 reshares, 10 +1s)

ASCII fluid dynamics. This is just really, really cool.﻿

2013-11-25 08:34:57 (0 comments, 2 reshares, 11 +1s)

Generalized Knight's Tours

A knight's tour is a sequence of moves of a knight on a chessboard such that the knight visits every square exactly once, and the knight's tour problem is the mathematical problem of finding a knight's tour.

There are two types of tours: if the knight ends up on the same square that it starts on, then the tour is said to be closed; otherwise, the tour is said to be open.

There are references to the knight's tour problem in Arabic and Sanskrit texts dating back more than a thousand years, and the problem has long been known to have a solution. In fact, on a standard 8 by 8 chessboard, there are a lot of solutions: the number of possible closed knight's tours has been shown to be 26,534,728,821,064, although the number of open knight's tours is unknown.

So what happens if one asks the... more »

2013-11-23 15:45:08 (1 comments, 0 reshares, 9 +1s)

LOL!﻿

2013-11-22 21:38:43 (0 comments, 2 reshares, 3 +1s)

Nice post by +Michael Trick about his work on the scheduling of +MLB :)﻿

2013-11-22 21:01:58 (0 comments, 0 reshares, 5 +1s)

Had some students try to guess where I was from the past couple of weeks. They went through my CV online and tried to piece together some clues such as the name of my blog "un peu de math". They didn't quite manage to figure out where I'm from but I thought I'd read through my CV to see what they would now know about me. MAN my CV needs updating... We've got some friends visiting this weekend but that might be what I try to do Sunday evening perhaps...﻿

2013-11-22 02:26:42 (29 comments, 1 reshares, 17 +1s)

Here's the video of the #mathematics   #HoA  with +Science on Google+ with:

+Amy Robinson
+Dana Ernst
+Luis Guzman
+Jason Davison
+Robert Jacobson
+Sara Del Valle

So much fun :) Thanks to everyone who watched and asked questions :)

(+Cyrus Khan there's a comment on the YouTube clip by 'Cyrus' who recognized my Game Theory T-shirt, is that you? Cool if it is! and: yes it is :D)﻿

2013-11-22 02:21:40 (8 comments, 0 reshares, 2 +1s)

So I posted a blog post a couple of hours ago that was in fact not quite right. Thanks to +Patrick Honner and +Jason Merrill for pointing out my mistake :)

I've edited it and changed the title :)

It's now 2.20 am after doing the awesome #mathematics   #HoA  with +Science on Google+ so I'm heading to bed: http://goo.gl/CICRGu﻿

2013-11-22 02:18:54 (0 comments, 0 reshares, 4 +1s)

Well, that was fun!  +Sara Del Valle, +Vincent Knight, +Luis Guzman, +Amy Robinson, +Robert Jacobson, +Jason Davison and I just wrapped up a Science on Google+ Hangout on Air.  Thanks for having me (and sorry my video stopped working).﻿

2013-11-21 23:41:36 (6 comments, 0 reshares, 3 +1s)

A very brief response to +Patrick Honner's post "When Desmos fails" (http://mrhonner.com/archives/11643)

Patrick posted a slight bug that appears when you zoom in on a removable discontinuity of a function in Desmos (I haven't played with it much since it came out but it's a pretty cool looking online graphing calculator).

I thought I'd take a look at how +Sage Mathematical Software System could be used to do the same and if the same bug would appear (spoiler: it doesn't).

There's a Sage cell embedded in my blog post (although it doesn't really seem to fit) so here's a standalone Sage cell as well: http://goo.gl/WtezZ4﻿

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