Power set: Difference between revisions
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There are a [http://www.jsoftware.com/jwiki/Essays/Power_Set number of ways] to generate a power set in J. Here's one: |
There are a [http://www.jsoftware.com/jwiki/Essays/Power_Set number of ways] to generate a power set in J. Here's one: |
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<lang j>ps =: #~2#:@i.@^#</lang> |
<lang j>ps =: #~ 2 #:@i.@^ #</lang> |
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For example: |
For example: |
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<lang j> ps 'ACE' |
<lang j> ps 'ACE' |
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