Average Error: 0.0 → 0.0
Time: 9.8s
Precision: 64
\[-\log \left(\frac{1}{x} - 1\right)\]
↓
\[-\log \left(\frac{1}{x} - 1\right)\]
-\log \left(\frac{1}{x} - 1\right)
↓
-\log \left(\frac{1}{x} - 1\right)
double f(double x) {
        double r63535 = 1.0;
        double r63536 = x;
        double r63537 = r63535 / r63536;
        double r63538 = r63537 - r63535;
        double r63539 = log(r63538);
        double r63540 = -r63539;
        return r63540;
}
↓
double f(double x) {
        double r63541 = 1.0;
        double r63542 = x;
        double r63543 = r63541 / r63542;
        double r63544 = r63543 - r63541;
        double r63545 = log(r63544);
        double r63546 = -r63545;
        return r63546;
}

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

    \[-\log \left(\frac{1}{x} - 1\right)\]

  2. Final simplification0.0

    \[\leadsto -\log \left(\frac{1}{x} - 1\right)\]

Reproduce

herbie shell --seed 2019142 +o rules:numerics
(FPCore (x)
  :name "neg log"
  (- (log (- (/ 1 x) 1))))