Average Error: 0.0 → 0.0
Time: 42.0s
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 r2594817 = 1.0;
        double r2594818 = x;
        double r2594819 = r2594817 / r2594818;
        double r2594820 = r2594819 - r2594817;
        double r2594821 = log(r2594820);
        double r2594822 = -r2594821;
        return r2594822;
}
↓
double f(double x) {
        double r2594823 = 1.0;
        double r2594824 = x;
        double r2594825 = r2594823 / r2594824;
        double r2594826 = r2594825 - r2594823;
        double r2594827 = log(r2594826);
        double r2594828 = -r2594827;
        return r2594828;
}

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 2019107 
(FPCore (x)
  :name "neg log"
  (- (log (- (/ 1 x) 1))))