Merry Christmas - 2018

For this year's Christmas cards, we are recycling and old poem of mine from 1997.   Here it is:

A Prayer (Poem?) of Thanksgiving

Today, I give thanks for the circular (trigonometric) functions, for rising and falling, advancing and receding, cresting and troughing, swelling and shrinking, for every wave, for all things periodic, for the seasons, for weal and woe, for the song of the cicada, for rising up and for lying down, for eccentric and concentric contractions, for spinning cranks and reciprocating pistons, for sine, cosine, and tangent, and for all the variegated vibrations of this life. Amen.