Average Error: 0.0 → 0.0
Time: 7.3s
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 r133293 = 1.0;
        double r133294 = x;
        double r133295 = r133293 / r133294;
        double r133296 = r133295 - r133293;
        double r133297 = log(r133296);
        double r133298 = -r133297;
        return r133298;
}
↓
double f(double x) {
        double r133299 = 1.0;
        double r133300 = x;
        double r133301 = r133299 / r133300;
        double r133302 = r133301 - r133299;
        double r133303 = log(r133302);
        double r133304 = -r133303;
        return r133304;
}

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 2019164 
(FPCore (x)
  :name "neg log"
  (- (log (- (/ 1 x) 1))))