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

↓

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

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

↓

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

double f(double x, double y, double z) {
        double r508046 = x;
        double r508047 = y;
        double r508048 = r508046 + r508047;
        double r508049 = z;
        double r508050 = r508048 * r508049;
        return r508050;
}

↓

double f(double x, double y, double z) {
        double r508051 = y;
        double r508052 = x;
        double r508053 = r508051 + r508052;
        double r508054 = z;
        double r508055 = r508053 * r508054;
        return r508055;
}

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 2019192 
(FPCore (x y z)
  :name "Text.Parsec.Token:makeTokenParser from parsec-3.1.9, B"
  (* (+ x y) z))