Average Error: 0.0 → 0.0
Time: 13.8s
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 r25268 = 1.0;
        double r25269 = x;
        double r25270 = r25268 / r25269;
        double r25271 = r25270 - r25268;
        double r25272 = log(r25271);
        double r25273 = -r25272;
        return r25273;
}
↓
double f(double x) {
        double r25274 = 1.0;
        double r25275 = x;
        double r25276 = r25274 / r25275;
        double r25277 = r25276 - r25274;
        double r25278 = log(r25277);
        double r25279 = -r25278;
        return r25279;
}

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 2019195 
(FPCore (x)
  :name "neg log"
  (- (log (- (/ 1.0 x) 1.0))))