Poetry from a math teacher's son

     In an earlier post I have noted how effectively mathematicians and their mathematics may be described by poets who are in the same family.  This link, too, leads to portraits of mathematicians.
     Poet and novelist John Updike (1932-2009) was the son of a math teacher and the selection below is a sonnet that begins in the style of a math-class word-problem linking his own age with that of his father.

from  Midpoint     by John Updike

     FATHER, as old as you when I was four,
     I feel the restlessness of nearing death
     But lack your manic passion to endure,
     Your Stoic fortitude and Christian faith.
     Remember, at the blackboard, factoring?