# Coal: Composition of Linear Functions

Coal is a small software dedicated to automatize composition of linear functions.
For example, it can compute slope, intercept and fixed point of *gfg* given
*f: x ↦ ax+b* and
*g: x ↦ cx+d*.
Here, *a* and *b* can be formal letters, rational values or real values.

More info and chaotic illustrations can be found on my github page.

Written on October 11, 2017