Alicia Yeargin has a few excellent pictures for the math geeks. The first one is computing the surface area of a cylindar *snicker snicker*

The second one is a nice little comic about bias:

The third is something silly she wrote on her math test. She says:
“An actual picture of a MAT140 test I took. (At least the grader seemed mildly amused.)”

i don’t understand the cylinder one at all??
It’s a penis.