Average Error: 0.0 → 0.0
Time: 693.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r182073 = x;
        double r182074 = r182073 * r182073;
        double r182075 = 1.0;
        double r182076 = r182074 - r182075;
        return r182076;
}
↓
double f(double x) {
        double r182077 = x;
        double r182078 = r182077 * r182077;
        double r182079 = 1.0;
        double r182080 = r182078 - r182079;
        return r182080;
}

Error

Bits error versus x

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.0

    \[x \cdot x - 1\]

  2. Final simplification0.0

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

Reproduce

herbie shell --seed 2019297 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  :precision binary64
  (- (* x x) 1))