'calculi' is a crate used to algebraically solve equations with unknown variables for a given outcome.
It is also able to solve equations when all unknown variables are given.
```rust let eq1 = calculi::Equation::new("x - 2 * a + 4 ^ b"); asserteq!(eq1.solvefor(10.0, vec![("a", 4.5), ("b", 1.0)]).1, 15.0);
let eq2 = calculi::Equation::new("max(x + 3, root(y, 3), 1) + ln(exp(3))"); asserteq!(eq2.solvewith(vec![("x", 2.0), ("y", 27.0)]).to_float().unwrap(), 8.0);
Look at Equation for all the equation functions.
Look at Component for the component functions that can be used on the component which Equation::solve_with returns.
Look at Operators for all available operators.