Average Error: 0.0 → 0.0
Time: 7.0s
Precision: 64
\[a \cdot a - b \cdot b\]
↓
\[\left(b + a\right) \cdot \left(a - b\right)\]
a \cdot a - b \cdot b
↓
\left(b + a\right) \cdot \left(a - b\right)
double f(double a, double b) {
        double r5535352 = a;
        double r5535353 = r5535352 * r5535352;
        double r5535354 = b;
        double r5535355 = r5535354 * r5535354;
        double r5535356 = r5535353 - r5535355;
        return r5535356;
}
↓
double f(double a, double b) {
        double r5535357 = b;
        double r5535358 = a;
        double r5535359 = r5535357 + r5535358;
        double r5535360 = r5535358 - r5535357;
        double r5535361 = r5535359 * r5535360;
        return r5535361;
}

Error

Bits error versus a

Bits error versus b

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Target

Original0.0
Target0.0
Herbie0.0
\[\left(a + b\right) \cdot \left(a - b\right)\]

Derivation

  1. Initial program 0.0

    \[a \cdot a - b \cdot b\]
  2. Using strategy rm

  3. Applied difference-of-squares0.0

    \[\leadsto \color{blue}{\left(a + b\right) \cdot \left(a - b\right)}\]

  4. Final simplification0.0

    \[\leadsto \left(b + a\right) \cdot \left(a - b\right)\]

Reproduce

herbie shell --seed 2019163 
(FPCore (a b)
  :name "Difference of squares"

  :herbie-target
  (* (+ a b) (- a b))

  (- (* a a) (* b b)))