Peano curve: Difference between revisions
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=={{header|J}}== |
=={{header|J}}== |
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This Hilbert variant is taken directly from the j lab "viewmat". |
This Hilbert variant is taken directly from the j lab "viewmat". |
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< |
<lang j> |
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load'viewmat' |
load'viewmat' |
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hp=: 3 : '(|.,]) 1 (0 _2 _2 ,&.> _2 _1 0 + #y) } (,.|:) y' |
hp=: 3 : '(|.,]) 1 (0 _2 _2 ,&.> _2 _1 0 + #y) } (,.|:) y' |
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WR=: 16777215 16711680 |
WR=: 16777215 16711680 |
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viewrgb WR {~ hp ^:7 HP |
viewrgb WR {~ hp ^:7 HP |
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</ |
</lang j> |
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Or, a smaller [[j:File:Hp1.png|example]] (6 iterations instead of 7) and a different color selection:<lang J> require 'viewmat' |
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hp=: 3 : '(|.,]) 1 (0 _2 _2 ,&.> _2 _1 0 + #y) } (,.|:) y' |
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MG=: 256 #. 128 0 128,:0 192 0 |
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viewrgb 2 ([ # #"1) MG {~ hp ^:6 [ 0, 0 1 0 ,: 0,/lang> |
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=={{header|Java}}== |
=={{header|Java}}== |
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