Ira's math instructor had informed him, with a kind of loathing respect, that his only salvation lay in recommencing the study of arithmetic -- taking five or ten years in the process -- and then retiring to a cave for perhaps another fifteen in the vain hope of digesting, through meditation and prayer, the multiplication table. After that, Irv might be ready for elementary algebra, but not, the professor hoped to a merciful God, in this unfortunate institution of higher learning.

Ah, I observe that you chaps are beginning the study of elementary mathematics. The limits are wrong on this integration: they should go from pi-over-two to pi-over-three first instead of to zero. There's a discontinuity at pi-over-three, and your result, that the center of gravity of this six-inch cube is nine feet to the right, looks somewhat implausible.