Average Error: 20.5 → 20.5
Time: 720.0ms
Precision: binary64
\[\sqrt{b \cdot b - a}\]
↓
\[\sqrt{b \cdot b - a}\]
\sqrt{b \cdot b - a}
↓
\sqrt{b \cdot b - a}
double code(double b, double a) {
	return ((double) sqrt(((double) (((double) (b * b)) - a))));
}
↓
double code(double b, double a) {
	return ((double) sqrt(((double) (((double) (b * b)) - a))));
}

Error

Bits error versus b

Bits error versus a

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 20.5

    \[\sqrt{b \cdot b - a}\]

  2. Final simplification20.5

    \[\leadsto \sqrt{b \cdot b - a}\]

Reproduce

herbie shell --seed 2020153 
(FPCore (b a)
  :name "(sqrt (- (* b b) a))"
  :precision binary64
  (sqrt (- (* b b) a)))