Average Error: 0.0 → 0.0
Time: 675.0ms
Precision: 64
\[x \cdot x - 1\]
↓
\[x \cdot x - 1\]
x \cdot x - 1
↓
x \cdot x - 1
double f(double x) {
        double r8581928 = x;
        double r8581929 = r8581928 * r8581928;
        double r8581930 = 1.0;
        double r8581931 = r8581929 - r8581930;
        return r8581931;
}
↓
double f(double x) {
        double r8581932 = x;
        double r8581933 = r8581932 * r8581932;
        double r8581934 = 1.0;
        double r8581935 = r8581933 - r8581934;
        return r8581935;
}

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 2019172 
(FPCore (x)
  :name "Data.Random.Dice:roll from dice-0.1"
  (- (* x x) 1.0))