Renders mathematical expressions as ASCII art

Current version

Formula history

Mike McQuaid aamath: use ENV.deparallelize.
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages
Adam Vandenberg use test helpers
Adam Vandenberg aamath: modernize, document patch
Jack Nagel aamath: use patch DSL
Adam Vandenberg aamath: fix build with clang
Jack Nagel aamath: use test assertion
Jack Nagel aamath: improve test