Computer algebra system Formula was removed
Last version was
maxima requires the following formulae to be installed:
sbcl 1.4.5 Steel Bank Common Lisp system
gettext GNU internationalization (i18n) and localization (l10n) library
gnuplot 5.2.2_1 Command-driven, interactive function plotting
rlwrap 0.43 Readline wrapper: adds readline support to tools that lack it

Recent formula history

FX Coudert maxima: migrate to homebrew/core
Miguel Araújo maxima: fix audit
equal-l2 maxima 5.38.1
Ian Lancaster maxima 5.37.2
Xu Cheng remove root_url in bottle block

Formula code at GitHub