Average Error: 0.1 → 0.1
Time: 2.2s
Precision: binary64
\[\]
\[\]
double code(double x) {
	return ((double) log(((double) (((double) (1.0 / x)) + ((double) (((double) sqrt(((double) (1.0 - ((double) (x * x)))))) / x))))));
}
double code(double x) {
	return ((double) (((double) log(((double) sqrt(((double) (((double) (1.0 + ((double) sqrt(((double) (1.0 - ((double) (x * x)))))))) / x)))))) + ((double) log(((double) sqrt(((double) (((double) (1.0 + ((double) sqrt(((double) (1.0 - ((double) (x * x)))))))) / x))))))));
}

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

    \[\]
  2. Simplified0.1

    \[\leadsto \]
  3. Using strategy rm
  4. Applied add-sqr-sqrt0.1

    \[\leadsto \]
  5. Applied log-prod0.1

    \[\leadsto \]
  6. Final simplification0.1

    \[\leadsto \]

Reproduce

herbie shell --seed 2020191 
(FPCore (x)
  :name "Hyperbolic arc-(co)secant"
  :precision binary64
  (log (+ (/ 1.0 x) (/ (sqrt (- 1.0 (* x x))) x))))