Average Error: 0.0 → 0.0
Time: 5.5s
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 r44595 = 1.0;
        double r44596 = x;
        double r44597 = r44595 / r44596;
        double r44598 = r44597 - r44595;
        double r44599 = log(r44598);
        double r44600 = -r44599;
        return r44600;
}
↓
double f(double x) {
        double r44601 = 1.0;
        double r44602 = x;
        double r44603 = r44601 / r44602;
        double r44604 = r44603 - r44601;
        double r44605 = log(r44604);
        double r44606 = -r44605;
        return r44606;
}

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 2019128 
(FPCore (x)
  :name "neg log"
  (- (log (- (/ 1 x) 1))))