Data.Colour.CIE:cieLAB from colour-2.3.3, A

Average Error: 0.2 → 0.2

Time: 1.8s

Precision: binary64

Math

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↓

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Error

Bits error versus x

Bits error versus y

Target

Original	0.2
Target	0.2
Herbie	0.2

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Derivation

1. Initial program 0.2

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2. Taylor expanded around 0 0.2

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3. Simplified 0.2

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4. Using strategy rm

5. Applied sub-neg 0.2

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6. Applied distribute-lft-in 0.2

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7. Final simplification 0.2

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Reproduce

herbie shell --seed 2020181 
(FPCore (x y)
  :name "Data.Colour.CIE:cieLAB from colour-2.3.3, A"
  :precision binary64

  :herbie-target
  (* y (- (* x 3.0) 0.41379310344827586))

  (* (* (- x (/ 16.0 116.0)) 3.0) y))