Average Error: 0.0 → 0.0
Time: 4.6s
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 r9187 = 1.0;
        double r9188 = x;
        double r9189 = r9187 / r9188;
        double r9190 = r9189 - r9187;
        double r9191 = log(r9190);
        double r9192 = -r9191;
        return r9192;
}
↓
double f(double x) {
        double r9193 = 1.0;
        double r9194 = x;
        double r9195 = r9193 / r9194;
        double r9196 = r9195 - r9193;
        double r9197 = log(r9196);
        double r9198 = -r9197;
        return r9198;
}

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 2019196 
(FPCore (x)
  :name "neg log"
  (- (log (- (/ 1.0 x) 1.0))))