Average Error: 0.1 → 0.1
Time: 830.0ms
Precision: binary64
\[\frac{\log_{2} x}{x - 1}\]
↓
\[\frac{\log_{2} x}{x - 1}\]
\frac{\log_{2} x}{x - 1}
↓
\frac{\log_{2} x}{x - 1}
double code(double x) {
	return ((double) (((double) log2(x)) / ((double) (x - 1.0))));
}
↓
double code(double x) {
	return ((double) (((double) log2(x)) / ((double) (x - 1.0))));
}

Error

Bits error versus x

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.1

    \[\frac{\log_{2} x}{x - 1}\]

  2. Final simplification0.1

    \[\leadsto \frac{\log_{2} x}{x - 1}\]

Reproduce

herbie shell --seed 2020153 
(FPCore (x)
  :name "(/ (log2 x) (- x 1))"
  :precision binary64
  (/ (log2 x) (- x 1.0)))