I was intrigued by the title of this book and the title poem "Midlife Calculus." My last math classes were advanced geometry and trigonometry. And I took them nearly 60 years ago! Since I never took calculus, there are equations and symbols that passed me by in this work. But I know enough about the language of math to recognize many of the allusions and puns, which made reading this book a playful experience, eye-opening in many ways. Willa Cather titled one of her books "Not Under Forty," referring to the fact that she was not writing for the young and did not think they were capable of comprehending her work until they grew older. As an elder, I think a lot about age too, so I resonated a lot with the title poem and found age to be a strong theme in many of these poems. Here's one of my favorites:
Halo
Call the old lady eccentric when she raises her hands to stay scything blades from mowing down dandelions. Give the bees the first fruits of the season: Sunny golden discs given time, also go grey — spheres of tenuous tangents waiting to be born aloft on the breath of a child.