Comment by ivansavz

Nice to see adults (re)learning math. It's one of the rare subjects that are guaranteed to provide "knowledge buzz" and also widely applicable.

<shameless plug>For other adults interested in learning math, check out my (nonfree) book here: https://noBSmath.com/ PDF preview and sample chapter: https://minireference.com/static/excerpts/noBSmath_v5_previe... I also have a longer book that includes calculus and physics (cf. links in profile). </shameless plug>