Average Error: 0.0 → 0.0
Time: 5.0s
Precision: 64
\[x \cdot \left(1 - x \cdot 0.5\right)\]
↓
\[\left(1 - x \cdot 0.5\right) \cdot x\]
x \cdot \left(1 - x \cdot 0.5\right)
↓
\left(1 - x \cdot 0.5\right) \cdot x
double f(double x) {
        double r2493598 = x;
        double r2493599 = 1.0;
        double r2493600 = 0.5;
        double r2493601 = r2493598 * r2493600;
        double r2493602 = r2493599 - r2493601;
        double r2493603 = r2493598 * r2493602;
        return r2493603;
}
↓
double f(double x) {
        double r2493604 = 1.0;
        double r2493605 = x;
        double r2493606 = 0.5;
        double r2493607 = r2493605 * r2493606;
        double r2493608 = r2493604 - r2493607;
        double r2493609 = r2493608 * r2493605;
        return r2493609;
}

Error

Bits error versus x

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.0

    \[x \cdot \left(1 - x \cdot 0.5\right)\]

  2. Final simplification0.0

    \[\leadsto \left(1 - x \cdot 0.5\right) \cdot x\]

Reproduce

herbie shell --seed 2019171 
(FPCore (x)
  :name "Numeric.SpecFunctions:log1p from math-functions-0.1.5.2, B"
  (* x (- 1.0 (* x 0.5))))