Text.Parsec.Token:makeTokenParser from parsec-3.1.9, A

Average Error: 0.0 → 0.0

Time: 10.2s

Precision: 64

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

Math

\[\frac{x + y}{10}\]

↓

\[\frac{x + y}{10}\]

C

double f(double x, double y) {
        double r4081 = x;
        double r4082 = y;
        double r4083 = r4081 + r4082;
        double r4084 = 10.0;
        double r4085 = r4083 / r4084;
        return r4085;
}

↓

double f(double x, double y) {
        double r4086 = x;
        double r4087 = y;
        double r4088 = r4086 + r4087;
        double r4089 = 10.0;
        double r4090 = r4088 / r4089;
        return r4090;
}

Error

Bits error versus x

Bits error versus y

Derivation

1. Initial program 0.0

   \[\frac{x + y}{10}\]

2. Final simplification 0.0

   \[\leadsto \frac{x + y}{10}\]

Reproduce

herbie shell --seed 2020043 +o rules:numerics
(FPCore (x y)
  :name "Text.Parsec.Token:makeTokenParser from parsec-3.1.9, A"
  :precision binary64
  (/ (+ x y) 10))