Average Error: 30.7 → 15.3
Time: 4.2s
Precision: binary64
\[\]
↓
\[\]
↓
double code(double x) {
	return ((double) sqrt(((double) (2.0 * ((double) pow(x, 2.0))))));
}

↓
double code(double x) {
	double VAR;
	if ((x <= -8.4461583732341e-311)) {
		VAR = ((double) (((double) sqrt(2.0)) * ((double) sqrt(((double) pow(x, 2.0))))));
	} else {
		VAR = ((double) (((double) (((double) cbrt(((double) sqrt(2.0)))) * ((double) cbrt(((double) sqrt(2.0)))))) * ((double) (((double) cbrt(((double) sqrt(2.0)))) * ((double) pow(x, 1.0))))));
	}
	return VAR;
}

Error
Bits error versus x
Try it out
Your Program's Arguments
Results
Enter valid numbers for all inputs
Derivation
  1. Split input into 2 regimes
  2. if  x  < -8.44615837323415e-311
    1. Initial program 30.8
      \[\]
    2. Using strategy rm
    3. Applied sqrt-prod30.9
      \[\leadsto \]
    if -8.44615837323415e-311 <  x 
    1. Initial program 30.7
      \[\]
    2. Taylor expanded around 0 5.7
      \[\leadsto \]
    3. Simplified0.4
      \[\leadsto \]
    4. Using strategy rm
    5. Applied add-cube-cbrt0.4
      \[\leadsto \]
    6. Applied associate-*l*0.4
      \[\leadsto \]
    7. Simplified0.4
      \[\leadsto \]
  3. Recombined 2 regimes into one program.
  4. Final simplification15.3
    \[\leadsto \]
Reproduce
herbie shell --seed 2020180 
(FPCore (x)
  :name "sqrt D"
  :precision binary64
  (sqrt (* 2.0 (pow x 2.0))))