https://github.com/qqwy/symmath
https://github.com/qqwy/symmath
Last synced: 4 months ago
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- Host: GitHub
- URL: https://github.com/qqwy/symmath
- Owner: Qqwy
- Created: 2016-07-02T09:12:51.000Z (over 9 years ago)
- Default Branch: master
- Last Pushed: 2016-08-11T10:47:38.000Z (about 9 years ago)
- Last Synced: 2025-02-22T16:07:02.505Z (8 months ago)
- Language: Elixir
- Size: 11.7 KB
- Stars: 1
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Symmath
This library is a very, _very_ bare-bones Symbolic Math library for Elixir.
It is mainly a bunch of tests on how macros can rewrite AST right now.
Things that work:
### Creating an Expression
```
iex> require Symmath
iex> Symmath.expr(1+1)
Symmath.expr(1 + 1)
iex> Symmath.expr(3*x+5*pi)
Symmath.expr(3 * x + 5 * pi) # Note how `x` does not need to be defined, and how `pi` will be used as a mathematical constant.
```
## Taking the Derivative of an Expression
_(This can only recognize a very basic subset of all possible derivatives so far!)_
```
iex> require Symmath
iex> f = Symmath.expr(3*pow(x, 2))
Symmath.expr(3 * pow(x, 2))
iex> Symmath.deriv(f)
Symmath.expr(3 * (2 * pow(x, 2 - 1)))
```
## Simplifying an Expression
_(This only does one layer of very basic simplification so far!)_
```
iex> g = Symmath.expr(1+2+3+4))
iex> Symmath.simplify(g)
Symmath.expr(3+3+4)
```