22 lines
1.1 KiB
Plaintext
22 lines
1.1 KiB
Plaintext
defmodule Gamma do
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@a [ 1.00000_00000_00000_00000, 0.57721_56649_01532_86061, -0.65587_80715_20253_88108,
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-0.04200_26350_34095_23553, 0.16653_86113_82291_48950, -0.04219_77345_55544_33675,
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-0.00962_19715_27876_97356, 0.00721_89432_46663_09954, -0.00116_51675_91859_06511,
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-0.00021_52416_74114_95097, 0.00012_80502_82388_11619, -0.00002_01348_54780_78824,
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-0.00000_12504_93482_14267, 0.00000_11330_27231_98170, -0.00000_02056_33841_69776,
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0.00000_00061_16095_10448, 0.00000_00050_02007_64447, -0.00000_00011_81274_57049,
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0.00000_00001_04342_67117, 0.00000_00000_07782_26344, -0.00000_00000_03696_80562,
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0.00000_00000_00510_03703, -0.00000_00000_00020_58326, -0.00000_00000_00005_34812,
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0.00000_00000_00001_22678, -0.00000_00000_00000_11813, 0.00000_00000_00000_00119,
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0.00000_00000_00000_00141, -0.00000_00000_00000_00023, 0.00000_00000_00000_00002 ]
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|> Enum.reverse
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def taylor(x) do
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y = x - 1
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1 / Enum.reduce(@a, 0, fn a,sum -> sum * y + a end)
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end
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end
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Enum.each(Enum.map(1..10, &(&1/3)), fn x ->
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:io.format "~f ~18.15f~n", [x, Gamma.taylor(x)]
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end)
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