Average Error: 0.0 → 0.0
Time: 4.0s
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 r8533 = 1.0;
        double r8534 = x;
        double r8535 = r8533 / r8534;
        double r8536 = r8535 - r8533;
        double r8537 = log(r8536);
        double r8538 = -r8537;
        return r8538;
}
↓
double f(double x) {
        double r8539 = 1.0;
        double r8540 = x;
        double r8541 = r8539 / r8540;
        double r8542 = r8541 - r8539;
        double r8543 = log(r8542);
        double r8544 = -r8543;
        return r8544;
}

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 2019135 
(FPCore (x)
  :name "neg log"
  (- (log (- (/ 1 x) 1))))