Common Patterns: Difference between revisions
→added deltas description and examples in shakti
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'''Primitives''': [[plus]], [[over]]
=== Deltas ===
<code>-':</code>
'''Description:''' Function to find the differences between members of an array. Comes in various flavors.
'''Examples'''
<code>-':1 2 3 4 -> 1 1 1 1 /the builtin eachp prepends an array with zero before evaluation, so the output is the same size</code>
<code>-':5 2 4 8 -> 5 -3 2 4</code>
<code>{y/(1_;-1_)@\:x}[6 7 8;-] -> 1 1 /you can substitute the default eachp with your own for different behaviour, like this shakti example that just evaluates over each pair in x without prepending 0</code>
<code>/the difference is highlighted here:
-':6 7 8 -> 6 1 1</code>
'''Dialects''': all, syntax may vary
'''Primitives''': [[eachp]], [[minus]]
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