2016-12-05 23:44:36 +01:00
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func dif(arr) {
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gather {
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2017-09-23 10:01:46 +02:00
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for i (0 ..^ arr.end) {
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take(arr[i+1] - arr[i])
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2016-12-05 23:44:36 +01:00
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}
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}
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}
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func difn(n, arr) {
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2017-09-23 10:01:46 +02:00
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{ arr = dif(arr) } * n
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arr
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2016-12-05 23:44:36 +01:00
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}
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2017-09-23 10:01:46 +02:00
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say dif([1, 23, 45, 678]) # => [22, 22, 633]
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say difn(2, [1, 23, 45, 678]) # => [0, 611]
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