Sum of squares: Difference between revisions
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(→{{header|Tcl}}: Cleaned it up.) |
(Put the code in a procedure. Made the code generic. Changed "map" to "mapIt". Added an example with an empty sequence. Added output.) |
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<lang nim>import math, sequtils |
<lang nim>import math, sequtils |
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proc sumSquares[T: SomeNumber](a: openArray[T]): T = |
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echo sum(map(@[1,2,3,4,5], proc (x: int): int = x*x))</lang> |
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sum(a.mapIt(it * it)) |
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let a1 = [1, 2, 3, 4, 5] |
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echo a1, " → ", sumSquares(a1) |
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let a2: seq[float] = @[] |
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echo a2, " → ", sumSquares(a2)</lang> |
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{{out}} |
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<pre>[1, 2, 3, 4, 5] → 55 |
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@[] → 0.0</pre> |
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=={{header|Objeck}}== |
=={{header|Objeck}}== |
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