Average Error: 0.0 → 0.0
Time: 3.4s
Precision: 64
\[x \cdot x - \left(y \cdot 4\right) \cdot z\]
↓
\[x \cdot x - \left(y \cdot 4\right) \cdot z\]
x \cdot x - \left(y \cdot 4\right) \cdot z
↓
x \cdot x - \left(y \cdot 4\right) \cdot z
double f(double x, double y, double z) {
        double r7991735 = x;
        double r7991736 = r7991735 * r7991735;
        double r7991737 = y;
        double r7991738 = 4.0;
        double r7991739 = r7991737 * r7991738;
        double r7991740 = z;
        double r7991741 = r7991739 * r7991740;
        double r7991742 = r7991736 - r7991741;
        return r7991742;
}
↓
double f(double x, double y, double z) {
        double r7991743 = x;
        double r7991744 = r7991743 * r7991743;
        double r7991745 = y;
        double r7991746 = 4.0;
        double r7991747 = r7991745 * r7991746;
        double r7991748 = z;
        double r7991749 = r7991747 * r7991748;
        double r7991750 = r7991744 - r7991749;
        return r7991750;
}

Error

Bits error versus x

Bits error versus y

Bits error versus z

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.0

    \[x \cdot x - \left(y \cdot 4\right) \cdot z\]

  2. Final simplification0.0

    \[\leadsto x \cdot x - \left(y \cdot 4\right) \cdot z\]

Reproduce

herbie shell --seed 2019169 
(FPCore (x y z)
  :name "Graphics.Rasterific.QuadraticFormula:discriminant from Rasterific-0.6.1"
  (- (* x x) (* (* y 4.0) z)))