Average Error: 61.1 → 61.1
Time: 7.8s
Precision: binary64
\[\log \left({e}^{x} - 1\right) - x\]
↓
\[\log \left({e}^{x} - 1\right) - x\]
\log \left({e}^{x} - 1\right) - x
↓
\log \left({e}^{x} - 1\right) - x
double code(double e, double x) {
	return ((double) (((double) log(((double) (((double) pow(e, x)) - 1.0)))) - x));
}
↓
double code(double e, double x) {
	return ((double) (((double) log(((double) (((double) pow(e, x)) - 1.0)))) - x));
}

Error

Bits error versus e

Bits error versus x

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 61.1

    \[\log \left({e}^{x} - 1\right) - x\]

  2. Final simplification61.1

    \[\leadsto \log \left({e}^{x} - 1\right) - x\]

Reproduce

herbie shell --seed 2020153 
(FPCore (e x)
  :name "(- (log (- (pow e x) 1)) x)"
  :precision binary64
  (- (log (- (pow e x) 1.0)) x))