Average Error: 0.0 → 0.0
Time: 7.2s
Precision: 64
\[2.0 \cdot \left(x \cdot x - x \cdot y\right)\]
↓
\[\left(x - y\right) \cdot \left(2.0 \cdot x\right)\]
2.0 \cdot \left(x \cdot x - x \cdot y\right)
↓
\left(x - y\right) \cdot \left(2.0 \cdot x\right)
double f(double x, double y) {
        double r26952137 = 2.0;
        double r26952138 = x;
        double r26952139 = r26952138 * r26952138;
        double r26952140 = y;
        double r26952141 = r26952138 * r26952140;
        double r26952142 = r26952139 - r26952141;
        double r26952143 = r26952137 * r26952142;
        return r26952143;
}
↓
double f(double x, double y) {
        double r26952144 = x;
        double r26952145 = y;
        double r26952146 = r26952144 - r26952145;
        double r26952147 = 2.0;
        double r26952148 = r26952147 * r26952144;
        double r26952149 = r26952146 * r26952148;
        return r26952149;
}

Error

Bits error versus x

Bits error versus y

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Target

Original0.0
Target0.0
Herbie0.0
\[\left(x \cdot 2.0\right) \cdot \left(x - y\right)\]

Derivation

  1. Initial program 0.0

    \[2.0 \cdot \left(x \cdot x - x \cdot y\right)\]

  2. Simplified0.0

    \[\leadsto \color{blue}{\left(2.0 \cdot x\right) \cdot \left(x - y\right)}\]

  3. Final simplification0.0

    \[\leadsto \left(x - y\right) \cdot \left(2.0 \cdot x\right)\]

Reproduce

herbie shell --seed 2019162 
(FPCore (x y)
  :name "Linear.Matrix:fromQuaternion from linear-1.19.1.3, A"

  :herbie-target
  (* (* x 2.0) (- x y))

  (* 2.0 (- (* x x) (* x y))))