Average Error: 0.0 → 0
Time: 1.1s
Precision: 64
\[\left(x + y\right) + x\]
↓
\[2 \cdot x + y\]
\left(x + y\right) + x
↓
2 \cdot x + y
double code(double x, double y) {
	return ((x + y) + x);
}
↓
double code(double x, double y) {
	return ((2.0 * x) + y);
}

Error

Bits error versus x

Bits error versus y

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Target

Original0.0
Target0
Herbie0
\[y + 2 \cdot x\]

Derivation

  1. Initial program 0.0

    \[\left(x + y\right) + x\]
  2. Using strategy rm

  3. Applied flip3-+42.5

    \[\leadsto \color{blue}{\frac{{\left(x + y\right)}^{3} + {x}^{3}}{\left(x + y\right) \cdot \left(x + y\right) + \left(x \cdot x - \left(x + y\right) \cdot x\right)}}\]

  4. Simplified42.5

    \[\leadsto \frac{{\left(x + y\right)}^{3} + {x}^{3}}{\color{blue}{y \cdot \left(x + y\right) + x \cdot x}}\]

  5. Taylor expanded around 0 0

    \[\leadsto \color{blue}{2 \cdot x + y}\]

  6. Final simplification0

    \[\leadsto 2 \cdot x + y\]

Reproduce

herbie shell --seed 2020100 
(FPCore (x y)
  :name "Graphics.Rendering.Plot.Render.Plot.Legend:renderLegendOutside from plot-0.2.3.4, A"
  :precision binary64

  :herbie-target
  (+ y (* 2 x))

  (+ (+ x y) x))