Brain Assistant is a CLI tool intended for computing mathematical expressions and being an encyclopedia for mathematical concepts.
Install using cargo:
sh
cargo install brain-assistant
Pass an expression to the brain command to parse and reduce an expression:
sh
$ brain 1+2+3
6
$ brain 1*2*3
6
$ brain (1+2)*3
9
Invoke the brain command without any arguments to start the graphical user
interface, with a REPL pane and an extra information pane. Exit the REPL by
pressing Ctrl-C or Esc.
If you are using zsh, parenthesises and multiplication might collide with the
glob pattern match settings. To prevent this, you can either quote the input
(e.g. brain "(1+2)*3"), or prefix the command with noglob (e.g
noglob brain (1+2)*3). Even better, you can create an alias that always
disables glob pattern matching for brain and save it in your zsh profile:
zsh
echo "alias brain='noglob brain'" >> ~/.zshrc