(/ (cosh x) (sinh x))

Average Error: 1.2 → 1.2

Time: 2.1s

Precision: binary64

• could not determine a ground truth for program body

  1. x = 2.7279434923395366e+116

Math

\[\frac{\cosh x}{\sinh x}\]

↓

\[\frac{\cosh x}{\sinh x}\]

C

double code(double x) {
	return ((double) (((double) cosh(x)) / ((double) sinh(x))));
}

↓

double code(double x) {
	return ((double) (((double) cosh(x)) / ((double) sinh(x))));
}

Error

Bits error versus x

Derivation

1. Initial program 1.2

   \[\frac{\cosh x}{\sinh x}\]

2. Final simplification 1.2

   \[\leadsto \frac{\cosh x}{\sinh x}\]

Reproduce

herbie shell --seed 2020153 
(FPCore (x)
  :name "(/ (cosh x) (sinh x))"
  :precision binary64
  (/ (cosh x) (sinh x)))