Average Error: 0.0 → 0.0
Time: 6.3s
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 r359712 = 1.0;
        double r359713 = x;
        double r359714 = r359712 / r359713;
        double r359715 = r359714 - r359712;
        double r359716 = log(r359715);
        double r359717 = -r359716;
        return r359717;
}
↓
double f(double x) {
        double r359718 = 1.0;
        double r359719 = x;
        double r359720 = r359718 / r359719;
        double r359721 = r359720 - r359718;
        double r359722 = log(r359721);
        double r359723 = -r359722;
        return r359723;
}

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 2019173 
(FPCore (x)
  :name "neg log"
  (- (log (- (/ 1.0 x) 1.0))))