October 08, 2015

4:45 PM | Daughter and Father - a warm geometry . . .
     Kate Stange is a mathematician -- from the Canadian province of Ontario and now at the University of Colorado -- whose father, Ken Stange, is a visual artist and poet. I met them on the internet via our combined interests in the intersections of poetry and mathematics. Lots of years ago, Kate gathered an online anthology of mathy poems. One of her recent online ventures is the development of WIN -- Women in Number Theory.  Below I offer one of Ken Stange's […]
3:49 PM | Toward Infinity . . .
     During summer teaching opportunities a dozen or more years ago in Deva, Romania I met Doru Radu who taught English there -- and our mutual love of poetry led us to collaborate on English translations of work by Romanian poets George Bacovia and Ileana Malancioiu.  Now Doru is in Poland and he is translating Polish poetry into Romanian.  One of his favorite poets is Ewa Lipska -- a poet I have met via Poetry International.  Below is her poem "Newton's […]

October 07, 2015

9:07 AM | as i think i am
How I made this video: first I wrote the script then I figured out the shots I wanted and wrote those down too. Then I collected plastic teabag wrappers for a year and old earplugs and an honest grit of polenta. I looked at it sometimes, in that year. The script. At 10:48pm on Tuesday September […]

October 05, 2015

10:10 AM | One, Tooth, Ree, …
Were a state assessment item writer to get his hands on the puzzle that I discuss below, I believe that this is what the problem might look like: Fifteen congruent segments labeled A-O are arranged horizontally and vertically to form five squares, with five of the segments shared by two squares each. Which three segments […]

October 04, 2015

11:59 PM | A mathematician's favorite poet
     A summertime gift book that I have much enjoyed reading is Love & Math: The Heart of Hidden Reality by Edward Frenkel (Basic Books, 2013).  I admire the way Frenkel's memoir braids mathematics together with the other threads of his life.  Including poetry.  Like me, he chooses E E Cummings as one of his favorite poets.  And he used lines from Cummings' 1931 poem "the surely" as an epigram for a 2007 book that summarized his […]
11:55 PM | September, 2015 (and prior) -- titles, dates of posts
Scroll down to find titles and dates of posts so far in 2015.  And follow these links for each year to to go to lists of posts through 2014, 2013, 2012 and 2011 -- and all the way back to March 2010 when this blog was begun. At the top of the column on the right is a SEARCH box for the blog and this link leads to a PDF file of searchable topics and names of poets and mathematicians presented herein.Sept 28  A subtraction problemSept 24  C K Williams -- Three Mile […]
2:28 PM | Από το αυτόνομο στο ιδεολογικό μοντέλο μαθηματικού γραμματισμού μέσω της Περιβαλλοντικής Εκπαίδευσης
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September 28, 2015

1:28 PM | A subtraction problem
Let's solve this subtraction problem:                    Women do the job            minus   the recognition.                               ____________________________      The "found poem" […]

September 27, 2015

9:03 PM | Eigencurves
Linear algebra is one of my favourite areas of mathematics. Its a simplification but you could say that the things that mathematics does well are small numbers and straight lines. The rest is… Continue reading →

September 25, 2015

1:11 PM | Happy “Happy Birthday” Day!
When I heard the news about the Happy Birthday lawsuit this (yesterday?) morning, I knew it would be hard to resist. As y’all probably know, we cover music and copyright law often over here at Vi Hart headquarters (see “Oh No, Pi Politics Again” and “Twelve Tones“), and I think about the Happy Birthday song […]

September 24, 2015

6:58 PM | C K Williams -- Three Mile Island
A poet whose work I have long enjoyed, C K Williams  (1936-1915), died a few days ago.  (You may find a generous sample of his poems online -- for example at PoetryFoundation.org and Poets.org.)  Williams is a poet whose writing does not tend toward mathematics but his very fine poem "Tar" (about the Three Mile Island nuclear plant crisis of 1979, a year when I lived in Pennsylvania not far away) has a few numbers.  I present below the first stanza of  "Tar" and, […]

September 22, 2015

2:51 AM | Jaynes Bicameral Video Experiment
I did this 360 video as part of my team’s ongoing spherical video experiments. Use the WASD keys or mouse on the video to look around, or the native Android YouTube app and just move around your phone. Use headphones and listen with both ears, or just one. So here’s how that happened: I vlogged […]

September 21, 2015

1:06 PM | Choosing what words mean . . .
     Nineteenth century writer and mathematician Lewis Carroll (1832-1898) gave his character, Humpty Dumpty, these words:  "When I use a word, it means just what I choose it to mean -- neither more nor less."  And so it is in mathematics -- where, for example, the term "rational" (used in the poem"The Disposition of Art," shown below) has a precise meaning that differs from its typical conversational usage.     The photo below shows […]

September 20, 2015

9:18 PM | Snowflake, Seashell, Star
Alex and I initially met thanks to this blog. He was fact checking for an article that included the Taylor-Socolar aperiodic tiling that I had written up. The general theme of the article… Continue reading →

September 18, 2015

4:25 PM | Words of Ada Lovelace
These poetic words of Ada Lovelace (1815-1852) -- concerning translation of mathematical principles into practical forms -- I found here: Those who view mathematical science,not merely as a vast bodyof abstract and immutable truths,whose intrinsic beauty, symmetry and logical completeness,when regarded in their connexion together as a whole,entitle them to a prominent place in the interest of all profound and logical minds,   but as possessing a yet deeper interest for the human […]
12:00 AM | Proton Earth, Electron Moon
Proton Earth, Electron Moon What if the Earth were made entirely of protons, and the Moon were made entirely of electrons? —Noah Williams This is, by far, the most destructive What-If scenario to date. You might imagine an electron Moon orbiting a proton Earth, sort of like a gigantic hydrogen atom. On one level, it makes a kind of sense; after all, electrons orbit protons, and moons orbit planets. In fact, a planetary model of the atom was briefly popular (although it turned out not to […]

September 17, 2015

7:51 PM | You Say It’s Your Birthday
It’s my birthday, too. Okay, not really, but it wouldn’t be surprising if it were. Today (September 17) is the fourth most common date on which to be born. Or at least it had been from 1973 to 1999, according to an analysis by Amitabh Chandra, a professor of social policy at Harvard who compiled 28 years of birth […]

September 15, 2015

11:59 PM | Infinite Binary Trees
So I thought this week I might remember what it is like to be a Vihart-brand Vi Hart and make a regular ol’ flat youtube video about a math thing. Also I came across this script I wrote last year that was supposed to be the next follow-up to the infinity series, and all it […]
9:53 PM | Shaping sentences with Fibonacci numbers . . .
Counting words . . ..       1                One     1               person     2               with courage     3               makes a majority. […]

September 14, 2015

4:40 AM | Loot™ — Best Game Ever?
If Loot isn’t the best game of all time, it’s at least the best game for International Talk Like a Pirate Day (September 19). For those who don’t know, Loot is a pirate-themed card game in which you can do three things: Send a merchant ship out to sea. Attack a merchant ship with pirate ships. […]

September 11, 2015

3:45 PM | Songs of mathematics . . .
     Larry Lesser is a songwriter who uses lyrics for teaching as well as entertainment.  A varied sample of his creations for doing this are presented in his article "Mathematical lyrics;  noteworthy endeavors in education" found in the "Poetry and Mathematics / Special Issue" of the Journal of Mathematics and the Arts, March-June 2014).     One of the article's enchanting items is a song for children -- "Circle Song" -- which Lesser has […]

September 09, 2015

11:42 AM | Lighthouses and Math in Oregon
My family and I recently spent a week along the Oregon coast, where we hiked, biked, and — of course — did some math. While on a hike through Ecola State Park, we had this view of the Tillamook Rock Lighthouse, a structure 62 feet tall that stands atop an offshore island: Never one to resist the opportunity […]

September 08, 2015

12:58 PM | It starts with counting . . .
Mathematical imagery is one of the many features I enjoy in the work of Canadian environmental scientist and poet Madhur Anand.  Here is a sample from her new collection (A New Index for Predicting Catastrophes).  Background:  In an experiment designed to test the truth of a given statement (often called the null hypothesis), a Type I error occurs if the experiment results in a true hypothesis being rejected (a "false positive") and a Type II error occurs if a false […]

September 03, 2015

2:03 PM | Mathematical Modeling
My friend and colleague, University of Connecticut mathematician Sarah Glaz, is an accomplished poet and is active in coordinating math-poetry activities -- via her website, the annual BRIDGES Conference, the anthology Strange Attractors: Poems of Love and Mathematics . . . .  Here is one of her mathy poems -- this one a pantoum, first published in London Grip.Mathematical Modelling     by Sarah GlazMathematical modelling may be viewed As an organizing principleThat […]
2:01 PM | August 2015 (and prior) -- titles, dates of posts
Scroll down to find titles and dates of posts so far in 2015.  And follow these links for each year to to go to lists of posts through 2014, 2013, 2012 and 2011 -- and all the way back to March 2010 when this blog was begun. This link leads to a SEARCH BOX for the blog and this link leads to a PDF file of searchable topics and names of poets and mathematicians presented herein.Aug 31  The answer is NO Aug 27  Hate Math -- 21 Reasons (NOT) . . . Aug 23  Three (or […]

August 31, 2015

10:57 AM | The answer is NO
This past weekend I have much enjoyed reading Mathematics:  a novel  by Jacques Roubaud  (Dalkey Archive Press, reprint 2010, translated from the French by Ian Monk); Roubaud is a mathematician, poet, and member of the OULIPO.  And here is a found poem from Chapter 1:.          A          question          posed to […]

August 27, 2015

1:12 PM | Hate Math -- 21 Reasons (NOT) . . .
Two four-letter words that I want NEVER to be used TOGETHER are hate and math.  A lively contradiction to my wish is provided by the following piece by slam poet Shappy Seasholtz.(For details on the World Poetry Slam to be held in Washington DC on Oct. 7-10, scroll down to the bottom of this posting.)21 Reasons Why I Hate Math     by Shappy Seasholtz1 - It's my worst subject.2 - I failed Algebra in high school.3 - When I retook Algebra in high school during the […]

August 23, 2015

4:16 PM | Three (or fewer) choices
Here is a link to an anthology of English translations of work by Chilean poet and mathematician, Nicanor Parra.   Some rank Nicanor Segundo Parra Sandoval (born 5 September 1914) among the most important poets of Spanish language literature.   Parra describes himself as an "anti-poet," having a distaste for poetic pomp and function; after recitations he exclaims "Me retracto de todo lo dicho" ("I take back everything I said").  I posted Parra's small poem "Thoughts" […]

August 18, 2015

8:01 PM | Caught in an infinite loop . . ..
Philadelphian Marion Cohen has been a mathematician since girlhood and a poet almost that long.  Besides her mathematics and writing, she teaches an interdisciplinary math-and-literature course at Arcadia University.  Here is a sample of Cohen's math poetry -- which imaginatively links mathematics to everyday life, sort of -- from her recent collection, Parables for a Rainy Day (Green Fuse Press, 2013).Weirdness at 22nd and Walnut     by Marion D. […]

August 15, 2015

2:00 PM | #548 Ulam spiral – And with this Season 3 of Geometry Daily...
#548 Ulam spiral – And with this Season 3 of Geometry Daily ends. Thanks for watching! You were a wonderful audience, it’s been tremendous fun. To ease the pain, please grab some prints and other stuff!There will of course be a Season 4, someday. Whenever this will be, I hope to see you again for: A new minimal geometric composition each day.
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