Average Error: 0 → 0
Time: 255.0ms
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 r228823 = x;
        double r228824 = r228823 + r228823;
        double r228825 = 1.0;
        double r228826 = r228824 - r228825;
        return r228826;
}
↓
double f(double x) {
        double r228827 = x;
        double r228828 = r228827 + r228827;
        double r228829 = 1.0;
        double r228830 = r228828 - r228829;
        return r228830;
}

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 2020018 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Distribution.Normal:doubleStdNormalZ from random-fu-0.2.6.2"
  :precision binary64
  (- (+ x x) 1))