Data.Random.Distribution.Normal:doubleStdNormalZ from random-fu-0.2.6.2

Average Error: 0 → 0

Time: 369.0ms

Precision: 64

• Falling back on racket egraph because egg-herbie package not installed

Math

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

↓

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

C

double f(double x) {
        double r256594 = x;
        double r256595 = r256594 + r256594;
        double r256596 = 1.0;
        double r256597 = r256595 - r256596;
        return r256597;
}

↓

double f(double x) {
        double r256598 = x;
        double r256599 = r256598 + r256598;
        double r256600 = 1.0;
        double r256601 = r256599 - r256600;
        return r256601;
}

Error

Bits error versus x

Derivation

1. Initial program 0

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

2. Final simplification 0

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

Reproduce

herbie shell --seed 2020045 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Distribution.Normal:doubleStdNormalZ from random-fu-0.2.6.2"
  :precision binary64
  (- (+ x x) 1))