Average Error: 0 → 0
Time: 512.0ms
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 r188744 = x;
        double r188745 = r188744 + r188744;
        double r188746 = 1.0;
        double r188747 = r188745 - r188746;
        return r188747;
}
↓
double f(double x) {
        double r188748 = x;
        double r188749 = r188748 + r188748;
        double r188750 = 1.0;
        double r188751 = r188749 - r188750;
        return r188751;
}

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 2019308 
(FPCore (x)
  :name "Data.Random.Distribution.Normal:doubleStdNormalZ from random-fu-0.2.6.2"
  :precision binary64
  (- (+ x x) 1))