Some interesting inner products:
| ~:/ .=
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leapyear=: 0 ~:/ .= 4 100 400 |/ ]
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| ~:/ .*
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inner product in GF(2)
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| >./ .+
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y >./ .+ __ * x~:/~.x is equivalent to x >.//. y for vectors x and y
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| <./ .+
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y <./ .+ _ * x~:/~.x is equivalent to x <.//. y for vectors x and y ; see the Transpose essay
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