Average Error: 0.0 → 0.0
Time: 5.7s
Precision: 64
\[x \cdot \left(1 - x \cdot 0.5\right)\]
↓
\[x \cdot \left(1 - x \cdot 0.5\right)\]
x \cdot \left(1 - x \cdot 0.5\right)
↓
x \cdot \left(1 - x \cdot 0.5\right)
double f(double x) {
        double r4617596 = x;
        double r4617597 = 1.0;
        double r4617598 = 0.5;
        double r4617599 = r4617596 * r4617598;
        double r4617600 = r4617597 - r4617599;
        double r4617601 = r4617596 * r4617600;
        return r4617601;
}
↓
double f(double x) {
        double r4617602 = x;
        double r4617603 = 1.0;
        double r4617604 = 0.5;
        double r4617605 = r4617602 * r4617604;
        double r4617606 = r4617603 - r4617605;
        double r4617607 = r4617602 * r4617606;
        return r4617607;
}

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

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

Reproduce

herbie shell --seed 2019174 
(FPCore (x)
  :name "Numeric.SpecFunctions:log1p from math-functions-0.1.5.2, B"
  (* x (- 1.0 (* x 0.5))))