Average Error: 0.0 → 0.0
Time: 6.2s
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 r105136 = 1.0;
        double r105137 = x;
        double r105138 = r105136 / r105137;
        double r105139 = r105138 - r105136;
        double r105140 = log(r105139);
        double r105141 = -r105140;
        return r105141;
}
↓
double f(double x) {
        double r105142 = 1.0;
        double r105143 = x;
        double r105144 = r105142 / r105143;
        double r105145 = r105144 - r105142;
        double r105146 = log(r105145);
        double r105147 = -r105146;
        return r105147;
}

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