Graphics.Rasterific.Shading:$sradialGradientWithFocusShader from Rasterific-0.6.1, A

Average Error: 0.0 → 0.0

Time: 325.0ms

Precision: 64

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

Math

\[x \cdot x + 1\]

↓

\[x \cdot x + 1\]

C

double f(double x) {
        double r187448 = x;
        double r187449 = r187448 * r187448;
        double r187450 = 1.0;
        double r187451 = r187449 + r187450;
        return r187451;
}

↓

double f(double x) {
        double r187452 = x;
        double r187453 = r187452 * r187452;
        double r187454 = 1.0;
        double r187455 = r187453 + r187454;
        return r187455;
}

Error

Bits error versus x

Derivation

1. Initial program 0.0

   \[x \cdot x + 1\]

2. Final simplification 0.0

   \[\leadsto x \cdot x + 1\]

Reproduce

herbie shell --seed 2020042 +o rules:numerics
(FPCore (x)
  :name "Graphics.Rasterific.Shading:$sradialGradientWithFocusShader from Rasterific-0.6.1, A"
  :precision binary64
  (+ (* x x) 1))