Average Error: 0 → 0
Time: 263.0ms
Precision: 64
\[\left(x + x\right) - 1\]
↓
\[\left(x + x\right) - 1\]
\left(x + x\right) - 1
↓
\left(x + x\right) - 1
double f(double x) {
        double r166183 = x;
        double r166184 = r166183 + r166183;
        double r166185 = 1.0;
        double r166186 = r166184 - r166185;
        return r166186;
}
↓
double f(double x) {
        double r166187 = x;
        double r166188 = r166187 + r166187;
        double r166189 = 1.0;
        double r166190 = r166188 - r166189;
        return r166190;
}

Error

Bits error versus x

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0

    \[\left(x + x\right) - 1\]

  2. Final simplification0

    \[\leadsto \left(x + x\right) - 1\]

Reproduce

herbie shell --seed 2020020 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Distribution.Normal:doubleStdNormalZ from random-fu-0.2.6.2"
  :precision binary64
  (- (+ x x) 1))