Recently I have revisited my post (from October 2, 2012) that offers a puzzle poem by math-science guy Benjamin Banneker (1731-1806), "The Puzzle of the Hound and the Hare" and available here.
This link leads to several more posts that also offer mathy poems linked to African-American history and culture. And here, below, is a treasure to enjoy in any month:
Addition by Langston Hughes (1902-1967)
7 x 7 + love =
7 x 7 − love.
Hughes' poem "Addition" is found in the anthology Strange Attractors: Poems of Love and Mathematics (AK Peters/CRC Press, 2008), edited by Sarah Glaz and me and first posted in this blog, along with other poems celebrating to Black History Month, on February 20, 2011.