Matrix multiplication: Difference between revisions
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The notation is for a generalized inner product so that |
The notation is for a generalized inner product so that |
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<lang j> |
<lang j> |
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x ~:/ .*. y NB. boolean inner product ( |
x ~:/ .*. y NB. boolean inner product ( ~: is "not equal" (exclusive or) and *. is "and") |
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x *./ .= y NB. which rows of x are the same as vector y? |
x *./ .= y NB. which rows of x are the same as vector y? |
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x + / .= y NB. number of places where each row of x equals vector y |
x + / .= y NB. number of places where each row of x equals vector y |
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