TypeScriptDenoParser CombinatorsMath Evaluator

This is a math evaluator / calculator, written 100% from scratch. I used my own library (djena) as the base building blocks for implementing this. They both use parser combinators for parsing the input.

It supports the following features:

- Basic arithmetics -
`5+5`

,`23/18`

, etc. - Support for grouping expressions
`(5-2)*3)`

- Consuming whitespace -
`5 + 4`

and`5+4`

are equivalent - Operator precedence and left/right associativity -
`50/2*2+10`

gets evaluated to`60`

, not`22.5`

- Some useful constants -
`PI`

and`TAU`

- Builtin math functions -
`sin`

,`cos`

,`abs`

,`pow`

- Interactive REPL

The source code for this can be found on GitHub.