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

Average Error: 0 → 0

Time: 327.0ms

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 r216937 = x;
        double r216938 = r216937 + r216937;
        double r216939 = 1.0;
        double r216940 = r216938 - r216939;
        return r216940;
}

↓

double f(double x) {
        double r216941 = x;
        double r216942 = r216941 + r216941;
        double r216943 = 1.0;
        double r216944 = r216942 - r216943;
        return r216944;
}

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 2020043 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Distribution.Normal:doubleStdNormalZ from random-fu-0.2.6.2"
  :precision binary64
  (- (+ x x) 1))