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Pascal's triangle: Difference between revisions

Pascal's triangle (view source)

Revision as of 16:48, 24 September 2010

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→‎one-liner: s/series/sequence/ per recent spec change
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m (→‎one-liner: s/series/sequence/ per recent spec change)
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=== one-liner ===
 
The following routine returns a lazy list of lines using the seriessequence operator (<tt>...</tt>). With a lazy result you need not tell the routine how many you want; you can just use a slice subscript to get the first N lines:
<lang perl6>sub pascal { [1], -> @p { [0, @p Z+ @p, 0] } ... * }
 
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