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

Average Error: 0 → 0

Time: 308.0ms

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 r267624 = x;
        double r267625 = r267624 + r267624;
        double r267626 = 1.0;
        double r267627 = r267625 - r267626;
        return r267627;
}

↓

double f(double x) {
        double r267628 = x;
        double r267629 = r267628 + r267628;
        double r267630 = 1.0;
        double r267631 = r267629 - r267630;
        return r267631;
}

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 2020042 
(FPCore (x)
  :name "Data.Random.Distribution.Normal:doubleStdNormalZ from random-fu-0.2.6.2"
  :precision binary64
  (- (+ x x) 1))