16 lines
406 B
Plaintext
16 lines
406 B
Plaintext
; element-wise subtraction of two blocks. e.g.
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; vsub [1 2 3] [1 2 3] ; [0 0 0]
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vsub: function [u v][
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map couple u v 'pair -> pair\0 - pair\1
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]
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differences: function [block][
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order: attr "order"
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if order = null -> order: 1
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loop 1..order 'n -> block: vsub block drop block
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return block
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]
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print differences .order: 4 [90.5 47 58 29 22 32 55 5 55 73.5]
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print differences [1 2 3 4 5 6 7]
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