Average Error: 0.0 → 0.0
Time: 16.0s
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 r396666 = 1.0;
        double r396667 = x;
        double r396668 = r396666 / r396667;
        double r396669 = r396668 - r396666;
        double r396670 = log(r396669);
        double r396671 = -r396670;
        return r396671;
}
↓
double f(double x) {
        double r396672 = 1.0;
        double r396673 = x;
        double r396674 = r396672 / r396673;
        double r396675 = r396674 - r396672;
        double r396676 = log(r396675);
        double r396677 = -r396676;
        return r396677;
}

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 2019143 
(FPCore (x)
  :name "neg log"
  (- (log (- (/ 1 x) 1))))