Average Error: 0.0 → 0.0
Time: 5.3s
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 r55363 = x;
        double r55364 = 1.0;
        double r55365 = 0.5;
        double r55366 = r55363 * r55365;
        double r55367 = r55364 - r55366;
        double r55368 = r55363 * r55367;
        return r55368;
}
↓
double f(double x) {
        double r55369 = x;
        double r55370 = 1.0;
        double r55371 = 0.5;
        double r55372 = r55369 * r55371;
        double r55373 = r55370 - r55372;
        double r55374 = r55369 * r55373;
        return r55374;
}

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 2019198 
(FPCore (x)
  :name "Numeric.SpecFunctions:log1p from math-functions-0.1.5.2, B"
  (* x (- 1.0 (* x 0.5))))