Learned to integrate in High School, never used it again for years. Used in like 1 out of 5 Math classes at the start university. Haven't needed it for a good..

Learned to integrate in High School, never used it again for years. Used in like 1 out of 5 Math classes at the start university. Haven't needed it for a good.. 13 years I guess? Indistinguishable from "can't really integrate shit" without some hours of relearning.