A sonnet for W.R.Hamilton

      Irish mathematician William Rowan Hamilton (1805-1865) was also a poet (see, for example, this sonnet in a prior posting (13 October 2011).  Irish poet and physicist Iggy McGovern has written A Mystic Dream of 4:  A sonnet sequence based on the life of William Rowan Hamilton (Quaternia Press, 2013). 

The collection is prefaced by this quote from Hamilton:

"The quaternion [was] born, 

as a curious offspring of a quaternion of parents, 

say of geometry, algebra, metaphysics, and poetry."

Here is McGovern's opening sonnet.

GEOMETRY     by Iggy McGovern

Once, any pupil could define me best:
"points, lines, angles and figures", could amuse
The table with the Christmas cracker jest
About 'the squaw' on the hypotenuse! 

2015 (and prior) -- titles, dates, links for posts

If you wish to easily BROWSE past postings . . .

Scroll down to find titles and dates and links to postings in 2015.  

OR follow these year-number links 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 to 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.  Scrolling down the right-hand column leads to a partial list of LABELS that are linked to a list of blogs that contain them.
   Dec 31  Precision leads to poetry . . .
   Dec 28  Can a woman learn science (or mathematics)?
   Dec 24  And now welcome Christmas . . .
   Dec 22  Let us not forget . . .
   Dec 20  Who put the pie in Pythagoras?
   Dec 18  A student writes poetry for a math class . . .
   Dec 15  Generalized Pythagorean Theorem--a visual poem? 

And now welcome Christmas . . .

Let us sing . . .

(a version of)  The Twelve Days of Christmas

          The twelfth day of Christmas.
          My true love gave to me,
          Twelve lords a leaping,
          Eleven ladies dancing,
          Ten pipers piping,
          Nine drummers drumming,
          Eight maids a milking,
          Seven swans a swimming,
          Six geese a laying,
          Five golden rings,
          Four colly birds,
          Three French hens,
          Two turtle doves,
          And a partridge in a pear tree.

To learn some history of this song (and its variations), frequently sung as a cumulative marathon, see Wikipedia.

Let us not forget . . .

At this time of year in the Northern Hemisphere, many are without shelter -- and are cold.  Let us think of them  -- as Cecil Day-Lewis (1904-1972) does in "A Carol" below (a poem whose lines for the most part maintain an alternating 6-5 syllable count and which contains the small number two).  Let us remember to share our warmth.

       A Carol     by Cecil Day-Lewis 

       Oh hush thee, my baby,
       Thy cradle's in pawn:

2014 (and prior) -- titles, dates of posts

Scroll down to find titles and dates of posts in 2014.  At the bottom are links to lists of posts through 2013 and 2012 and 2011 -- and all the way back to March 2010 when this blog was begun.   This link leads to a PDF file that lists searchable topics and names of poets and mathematicians presented herein. 

Dec 30  Be someone TO COUNT ON in 2015
Dec 28  A Fractal Poem
Dec 25  A thousand Christmas trees
Dec 24  The gift of a poem
Dec 20  The Girl Who Loved Triangles 

A thousand Christmas trees

My email poem-a-day today from www.poets.org is "Christmas Trees" by Robert Frost (1874-1963); this 1916 poem includes some calculations and reflections based on the line:

       “A thousand trees would come to thirty dollars.”

Frost's poem has provoked me to thoughts of inflation and conservation; for the full poem, follow the link given with the title above.  And, if your time permits, go back to previous "Christmas" postings in this blog at these links:  23 December 2013,  24 December 2012,  21 December 2012,  22 December 2011, and 2 September 2010.

And Now I See . . .

     One of the ways we overcome our nervous shyness about our disabilities is by talking about them, and writing about them.  And by encountering the poetry of Kathi Wolfe.  I enjoy her work out-loud -- she is a frequent performer of her poems at local DC-area venues  -- and on the page.
     Kathi's "Blind Ambition" (in which she speaks of the monsters in arithmetic) is offered below; I first discovered this poem when it was posted by Split this Rock as poem of the week.  

On shoulders of giants . . .

     Washington, DC is a city rich with both poetry and mathematics.  Last Tuesday evening I attended a Mathematical Association of America (MAA) lecture by author and math historian William Dunham (whom I knew when he taught for a bunch of years at Pennsylvania's Muhlenberg College, in Eastern Pennsylvania, not so far from my employer, Bloomsburg University).  Dunham spoke of insights gained by many hours reading the correspondence of British mathematician and scientist, Sir Isaac Newton (1642-1727).  The discoverer of "gravity,"  and, moreover, both a genius and a disagreeable man.  Still, Newton was a man who gave a nod to his predecessors, "If I have seen further it is by standing on ye sholders of Giants."

2013 (and prior) -- titles, dates of posts

Scroll down to find dates and titles (with links) of posts in 2013.  At the bottom are links to posts through 2012 and 2011 -- and all the way back to March 2010 when this blog was begun.   This link leads to a PDF file that lists searchable topics and names of poets and mathematicians presented herein.

Dec 30  Error Message Haiku
Dec 26  The angel of numbers . . .
Dec 23  Ah, you are a mathematician
Dec 20  Measuring Winter 

Ah, you are a mathematician

Thanks to Arturo Sangalli of the Writer's Union of Canada -- and fellow-participant in a recent Banff creativity conference --  who reminded me of this poem.  And thanks to Bill Dunham who has spread it widely by including it in The Mathematical Universe  (Wiley, 1997).  These brief stanzas were written in the early 1990s  when many of us kept our financial facts in checkbooks rather than online; still current, however, is the mistaken image of mathematicians as those whose task it is to keep numbers clean and orderly.

          Misunderstanding     by JoAnne Growney

          Ah, you are a mathematician,
              they say with admiration
              or scorn.    

13 lads of Christmas

     In addition to waterfalls and geysers and the Aurora, Iceland has outstanding museums.  On the morning of December 10, I visited the National Museum of Iceland in Reykjavik -- and enjoyed a careful introduction to the history of this fascinating and friendly nation.  Something I missed, however, was seeing one of the 13 Yuletide Lads that are an Icelandic tradition and who visit the Museum one-by-one on the 13 days before Christmas, each wearing traditional costume and trying to pilfer the goodies he likes best.

Enough for everyone -- Russell Libby

Are you looking for a poem on a particular math topic?  One search strategy is to go to the Poetry Foundation website (another is to click on the green SEARCH BOX in the right column of this blog) and enter your math term into the search box; if, for example, you enter "geometry" one of the poems you find will be this one by Russell Libby (1956  -2012).  Both poet and organic farmer, Libby believed in sustainability:  all it takes is one well-cared-for seed to grow and spread.  Here is his "Applied Geometry." 

     Applied Geometry     by Russell Libby

     Applied geometry,   

     measuring the height   

     of a pine from   

     like triangles,   

2012 posts -- titles and links

Scroll down to find titles and dates of posts in 2012 -- and, at the bottom, links to posts all the way back through 2011 to March 2010 when this blog was begun.   This link leads to a PDF file that lists searchable topics and names of poets and mathematicians presented herein.

Dec 30  A chance encounter
Dec 28  Explorers
Dec 25  Support STREET SENSE
Dec 24  Star, shine bright!
Dec 21  Skating (with math) on Christmas 

Star, shine bright!

*
on
top
give
light
freely
forever
abundant
brilliant
everywhere

Be our

light!

For more visual poetry of Christmas, enjoy a visit to Bob Grumman's Guest Blog posting for Scientific American.  Thanks, Bob, and Happy Holiday wishes to all.

Skating (with math) on Christmas

     Found at poets.org, a lovely poem of ice skating and mathematics and Christmas by Cynthia Zarin; the title is "Skating in Harlem, Christmas Day."   Perhaps some day I will have completed all the paper work and the waiting required by Knopf and Random House to gain permission to offer herein Zarin's poem (from The Watercourse (2002) ) -- but, for now, please enjoy it by following the link I have given above.

Counting the dead

This poem by Joan Mazza heightens the impact of war-data by bringing it into the kitchen and the office -- juxtaposing war-numbers with the events of a pleasant day in central Virginia.  

Numbers for the Week       by Joan Mazza

This morning, it was twenty-eight degrees. I photographed
red oak leaves rimed with frost. I made chicken soup, canned
ten pint jars in the pressure cooker at fifteen pounds of pressure
for seventy-five minutes. On the stump near the compost pile,
I left the skin of fourteen chicken thighs for crows and woodpeckers.  

Taking Stock

Developing an inventory -- of what we have or have experienced, of what we see or imagine -- inevitably involves numbers and counting.  As in "Inventory" by Canadian poet Colin Morton, an adaptation or "free translation" of  "Inventaire" by Jacques Prevert.  Morton has a strong connection to mathematics --  his son is a mathematician at the Technical University of Lisbon.

  Inventory       by Colin Morton

  one lump of rock
  two houses
  three ruined foundations
  four gravediggers
  one garden
  some flowers

From 2011 -- dates, titles of posts

List of postings January 1 - December 31, 2011
Scrolling through the 12 months of titles below may lead you to topics and poets/poems of interest. Also helpful may be the SEARCH box at the top of the right-hand column; there you may enter names or terms that you would like to find herein.
Dec 30  Good Numbers
Dec 26  A mathematical woman
Dec 22  Counting on Christmas
Dec 20  Thoughts Suggested by a College Examination
Dec 17  Ruth Stone counts
Dec 14  A puzzle with a partial solution
Dec 11  Poetry captures math student
Dec  8  Monsieur Probabilty
Dec  5  Poetic Pascal Triangle
Dec  2  Mathematics works with witchcraft 

Counting on Christmas

 11

 one1

 2 two 21

 3 three 3 31

 4 4  four  4 41

 5 five 5 5 5 five 51

 6 six 6 6 six 6 6 six 61

 7 7 7 seven 7 seven 7 7 71

 8 eight 8 8 8 eight 8 8 8 eight 81

 9 nine 9 9 nine 9 9 9 nine 9 9 nine 91

 10 ten 10 10 10 10 ten 10 10 10 10 ten 101

 11 eleven 11 11 11 11 11 11 11 11 11 eleven 111

 12 twelve 12 12 12 12 12 12 12 12 12 12 twelve 121

 HAPPY1

  HOLI  -1

 DAYS !!1

Rhymes help to remember the digits of Pi

Calculated at the website, WolframAlpha, here are the first fifty-nine digits of the irrational number π (ratio of a circle's circumference to its diameter):

     π = 3.1415926535897932384626433832795028841971693993751058209749...

Before computers became available  to calculate π to lots of decimal places in an instant, people who did scientific calculations could keep the number easily available by memorizing some of the digits.  The website fun-with-words offers several mnemonics for  π , the most common type being a word-length mnemonic in which the number of letters in each word corresponds to a digit. For example the sentence, "How I wish I could calculate pi," gives us the first seven digits.