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

↓

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

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

↓

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

double f(double x, double y, double z) {
        double r773071 = x;
        double r773072 = y;
        double r773073 = r773071 + r773072;
        double r773074 = z;
        double r773075 = r773073 * r773074;
        return r773075;
}

↓

double f(double x, double y, double z) {
        double r773076 = y;
        double r773077 = x;
        double r773078 = r773076 + r773077;
        double r773079 = z;
        double r773080 = r773078 * r773079;
        return r773080;
}

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 2019168 
(FPCore (x y z)
  :name "Text.Parsec.Token:makeTokenParser from parsec-3.1.9, B"
  (* (+ x y) z))