(- d (* x x))

Average Error: 0.0 → 0.0

Time: 626.0ms

Precision: binary64

Math

\[d - x \cdot x\]

↓

\[d - x \cdot x\]

C

double code(double d, double x) {
	return ((double) (d - ((double) (x * x))));
}

↓

double code(double d, double x) {
	return ((double) (d - ((double) (x * x))));
}

Error

Bits error versus d

Bits error versus x

Derivation

1. Initial program 0.0

   \[d - x \cdot x\]

2. Final simplification 0.0

   \[\leadsto d - x \cdot x\]

Reproduce

herbie shell --seed 2020153 
(FPCore (d x)
  :name "(- d (* x x))"
  :precision binary64
  (- d (* x x)))