\[\left(x + y\right) \cdot z\]

↓

\[\left(y + x\right) \cdot z\]

\left(x + y\right) \cdot z

↓

\left(y + x\right) \cdot z

double f(double x, double y, double z) {
        double r736637 = x;
        double r736638 = y;
        double r736639 = r736637 + r736638;
        double r736640 = z;
        double r736641 = r736639 * r736640;
        return r736641;
}

↓

double f(double x, double y, double z) {
        double r736642 = y;
        double r736643 = x;
        double r736644 = r736642 + r736643;
        double r736645 = z;
        double r736646 = r736644 * r736645;
        return r736646;
}

Error

The X axis uses an exponential scale — Bits error versus `x`

Try it out

In
Out

Enter valid numbers for all inputs

Derivation

Initial program 0.0
\[\left(x + y\right) \cdot z\]
Final simplification0.0
\[\leadsto \left(y + x\right) \cdot z\]

Reproduce

herbie shell --seed 2019179 
(FPCore (x y z)
  :name "Text.Parsec.Token:makeTokenParser from parsec-3.1.9, B"
  (* (+ x y) z))