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

Average Error: 0 → 0

Time: 300.0ms

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 r53680 = x;
        double r53681 = r53680 + r53680;
        double r53682 = 1.0;
        double r53683 = r53681 - r53682;
        return r53683;
}

↓

double f(double x) {
        double r53684 = x;
        double r53685 = r53684 + r53684;
        double r53686 = 1.0;
        double r53687 = r53685 - r53686;
        return r53687;
}

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