Average Error: 0.3 → 0.3
Time: 13.9s
Precision: 64
\[\left(\left(x \cdot 3.0\right) \cdot y\right) \cdot y\]
↓
\[\left(y \cdot \left(y \cdot x\right)\right) \cdot 3.0\]
\left(\left(x \cdot 3.0\right) \cdot y\right) \cdot y
↓
\left(y \cdot \left(y \cdot x\right)\right) \cdot 3.0
double f(double x, double y) {
        double r36156000 = x;
        double r36156001 = 3.0;
        double r36156002 = r36156000 * r36156001;
        double r36156003 = y;
        double r36156004 = r36156002 * r36156003;
        double r36156005 = r36156004 * r36156003;
        return r36156005;
}
↓
double f(double x, double y) {
        double r36156006 = y;
        double r36156007 = x;
        double r36156008 = r36156006 * r36156007;
        double r36156009 = r36156006 * r36156008;
        double r36156010 = 3.0;
        double r36156011 = r36156009 * r36156010;
        return r36156011;
}

Error

Bits error versus x

Bits error versus y

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Target

Original0.3
Target0.2
Herbie0.3
\[\left(x \cdot \left(3.0 \cdot y\right)\right) \cdot y\]

Derivation

  1. Initial program 0.3

    \[\left(\left(x \cdot 3.0\right) \cdot y\right) \cdot y\]

  2. Taylor expanded around 0 0.2

    \[\leadsto \color{blue}{\left(3.0 \cdot \left(x \cdot y\right)\right)} \cdot y\]
  3. Using strategy rm

  4. Applied associate-*l*0.3

    \[\leadsto \color{blue}{3.0 \cdot \left(\left(x \cdot y\right) \cdot y\right)}\]

  5. Final simplification0.3

    \[\leadsto \left(y \cdot \left(y \cdot x\right)\right) \cdot 3.0\]

Reproduce

herbie shell --seed 2019164 
(FPCore (x y)
  :name "Diagrams.Segment:$catParam from diagrams-lib-1.3.0.3, B"

  :herbie-target
  (* (* x (* 3.0 y)) y)

  (* (* (* x 3.0) y) y))