Average Error: 0.0 → 0.0
Time: 1.6s
Precision: binary64
\[200 \cdot \left(x - y\right)\]
\[200 \cdot x - 200 \cdot y\]
200 \cdot \left(x - y\right)
200 \cdot x - 200 \cdot y
(FPCore (x y) :precision binary64 (* 200.0 (- x y)))
(FPCore (x y) :precision binary64 (- (* 200.0 x) (* 200.0 y)))
double code(double x, double y) {
	return 200.0 * (x - y);
}
double code(double x, double y) {
	return (200.0 * x) - (200.0 * y);
}

Error

Bits error versus x

Bits error versus y

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Results

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Derivation

  1. Initial program 0.0

    \[200 \cdot \left(x - y\right)\]
  2. Taylor expanded around 0 0.0

    \[\leadsto \color{blue}{200 \cdot x - 200 \cdot y}\]
  3. Final simplification0.0

    \[\leadsto 200 \cdot x - 200 \cdot y\]

Alternatives

Reproduce

herbie shell --seed 2021118 
(FPCore (x y)
  :name "Data.Colour.CIE:cieLABView from colour-2.3.3, C"
  :precision binary64
  (* 200.0 (- x y)))