Average Error: 0.0 → 0.0
Time: 24.5s
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 r543095 = 1.0;
        double r543096 = x;
        double r543097 = r543095 / r543096;
        double r543098 = r543097 - r543095;
        double r543099 = log(r543098);
        double r543100 = -r543099;
        return r543100;
}
↓
double f(double x) {
        double r543101 = 1.0;
        double r543102 = x;
        double r543103 = r543101 / r543102;
        double r543104 = r543103 - r543101;
        double r543105 = log(r543104);
        double r543106 = -r543105;
        return r543106;
}

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 2019124 
(FPCore (x)
  :name "neg log"
  (- (log (- (/ 1 x) 1))))