Average Error: 58.1 → 58.1
Time: 1.9s
Precision: binary64
\[\frac{e^{a} - \frac{1}{e^{a}}}{2}\]
↓
\[\frac{e^{a} - \frac{1}{e^{a}}}{2}\]
\frac{e^{a} - \frac{1}{e^{a}}}{2}
↓
\frac{e^{a} - \frac{1}{e^{a}}}{2}
double code(double a) {
	return ((double) (((double) (((double) exp(a)) - ((double) (1.0 / ((double) exp(a)))))) / 2.0));
}
↓
double code(double a) {
	return ((double) (((double) (((double) exp(a)) - ((double) (1.0 / ((double) exp(a)))))) / 2.0));
}

Error

Bits error versus a

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 58.1

    \[\frac{e^{a} - \frac{1}{e^{a}}}{2}\]

  2. Final simplification58.1

    \[\leadsto \frac{e^{a} - \frac{1}{e^{a}}}{2}\]

Reproduce

herbie shell --seed 2020153 
(FPCore (a)
  :name "(/ (- (exp a) (/ 1 (exp a))) 2)"
  :precision binary64
  (/ (- (exp a) (/ 1.0 (exp a))) 2.0))