Numerous poems by Canadian poet Alice Major connect to science and mathematics, and Major has connected me with Ottawa poet and mechanical engineer Sneha Madhavan-Reese -- who has shared with me not only poetry but also the new-to-me fact that her home city of  Ottawa lies on the traditional and unceded territory of the Algonquin Nation.  Here is Madhavan-Reese's poem, "Four," a thoughtful reminder of the vast versatility of mathematical notions.
    
       Four     by Sneha Madhavan-Reese
               Is 4 the same 4 for everybody? -- Pablo Neruda, The Book of Questions
       My mother draws her four with a right angle;
       my father's is pointed on top.  My daughter's four,
       half the time, is backwards.  Her sister signs,
       tucking a thumb into her raised palm.