Average Error: 0.0 → 0.0
Time: 738.0ms
Precision: binary64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
(FPCore (x) :precision binary64 (- (* x x) 1.0))
↓
(FPCore (x) :precision binary64 (- (* x x) 1.0))
double code(double x) {
	return ((double) (((double) (x * x)) - 1.0));
}
↓
double code(double x) {
	return ((double) (((double) (x * x)) - 1.0));
}

Error

Bits error versus x

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program Error: 0.0 bits

    \[x \cdot x - 1\]

  2. Final simplificationError: 0.0 bits

    \[\leadsto x \cdot x - 1\]

Reproduce

herbie shell --seed 2020204 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1.0))