Average Error: 0.0 → 0.0
Time: 8.3s
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 r133285 = 1.0;
        double r133286 = x;
        double r133287 = r133285 / r133286;
        double r133288 = r133287 - r133285;
        double r133289 = log(r133288);
        double r133290 = -r133289;
        return r133290;
}
↓
double f(double x) {
        double r133291 = 1.0;
        double r133292 = x;
        double r133293 = r133291 / r133292;
        double r133294 = r133293 - r133291;
        double r133295 = log(r133294);
        double r133296 = -r133295;
        return r133296;
}

Error

Bits error versus x

Try it out

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 2019158 
(FPCore (x)
  :name "neg log"
  (- (log (- (/ 1 x) 1))))