Graphics.Rendering.Chart.Plot.Pie:renderPie from Chart-1.5.3

Average Error: 29.6 → 0

Time: 494.0ms

Precision: 64

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

Math

\[\left(x + y\right) - x\]

↓

\[y\]

C

double f(double x, double y) {
        double r242776 = x;
        double r242777 = y;
        double r242778 = r242776 + r242777;
        double r242779 = r242778 - r242776;
        return r242779;
}

↓

double f(double __attribute__((unused)) x, double y) {
        double r242780 = y;
        return r242780;
}

Error

Bits error versus x

Bits error versus y

Target

Original	29.6
Target	0
Herbie	0

\[y - 0.0\]

Derivation

1. Initial program 29.6

   \[\left(x + y\right) - x\]

2. Simplified 0

   \[\leadsto \color{blue}{y}\]

3. Final simplification 0

   \[\leadsto y\]

Reproduce

herbie shell --seed 2020042 +o rules:numerics
(FPCore (x y)
  :name "Graphics.Rendering.Chart.Plot.Pie:renderPie from Chart-1.5.3"
  :precision binary64

  :herbie-target
  (- y 0.0)

  (- (+ x y) x))