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

Average Error: 0 → 0

Time: 358.0ms

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 r335402 = x;
        double r335403 = r335402 + r335402;
        double r335404 = 1.0;
        double r335405 = r335403 - r335404;
        return r335405;
}

↓

double f(double x) {
        double r335406 = x;
        double r335407 = r335406 + r335406;
        double r335408 = 1.0;
        double r335409 = r335407 - r335408;
        return r335409;
}

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 2020046 +o rules:numerics
(FPCore (x)
  :name "Data.Random.Distribution.Normal:doubleStdNormalZ from random-fu-0.2.6.2"
  :precision binary64
  (- (+ x x) 1))