**Algebra**

I used to solve equations easily.

If train A left Sioux Falls

at nine o'clock, traveling

at a fixed rate,

I knew when it would meet train B.

Now I wonder if the trains will crash;

or else . . .

Linda Pastan's "Algebra" appeared in

*Aspects of Eve --*and again in

*Carnival Evening: New and Selected Poems*(W W Norton, 1998). My July 1 posting includes the opening lines of another of Pastan's poem, "Infinity."

A poem which almost-perfectly captures the spirit of applied mathematics is "Figures of Thought" by Howard Nemerov; in his three stanzas of decreasing size, the structure mimics the tightening spiral. To read this poem is to enter the poet's sense of wonder at the way a mathematical curve (representable by an equation) fits as a model of several of the phenomena of life and living.

**Figures of Thought**

To lay the logarithmic spiral on

Sea-shell and leaf alike, and see it fit,

To watch the same idea work itself out

In the fighter pilot's steepening, tightening turn

Onto his

And in the flight of certain wall-eyed bugs

Who cannot see to fly straight into death

But have to cast their sidelong glance at it

And come but cranking to the candle's flame --

How secret that is, and how privileged

One feels to find the same necessity

Ciphered in forms diverse and otherwise

Without kinship -- that is the beautiful

In Nature as in art, not obvious,

Not inaccessible, but just between.

It may diminish some our dry delight

To wonder if everything we are and do

Lies subject to some little law like that,

Hidden in nature, but not deeply so.

Poet Laureate of the United States during 1988-1990, Howard Nemerov (1920-91) served as a combat pilot during

Developing more fully the intersection of poetry and applied mathematics is a fine article in the Autumn 2009 issue of

*The American Scholar,*written by Joel E. Cohen of The Rockefeller University and Columbia University, entitled "A Mindful Beauty: What Poetry and Applied Mathematics Have in Common." Cohen's thought-provoking article compares structural patterns in a poem by A E Housman "With rue my heart is laden" with formulas from his recent research.

With the intent of drawing you to read the whole of Cohen's article, I present here two of his thought-provoking paragraphs--one copied from the first half of the article, the other from near the end:

"Like poetry, applied mathematics combines multiple meanings, economy, pattern, and mystery. In its scientific or practical applications, applied mathematics points to something external. It also alludes to prior mathematics. Its few symbols convey a lot. Its use of symbols often involves internal repetition, symmetry, and chiasmus. It is replete with unexpected truths, unexpected applications, and diverse proofs that illuminate different aspects of a single truth."

"As apples do differ from oranges, poetry does differ from applied mathematics, despite their commonalities. For example, in poetry, but not mathematics, sound and “mouthfeel” (Galway Kinnell) matter. In applied mathematics, unlike poetry, calculation and shared scientific concepts and data, rather than intimate experience, lend conviction. Examples of differences could be multiplied. They do not undermine the significance of the similarities."

Finally, I want to mention recent activity by one of the long-term bloggers (since 2005) featuring poetry-with-mathematics, namely Kaz Maslanka. His mathematical-poetry blogspot has recently collected viewpoints on "What is '

*mathematical*poetry'?" and readers here may find this, and other items Kaz has posted, to be of interest.

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