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Re:Linear Algebra: What matrices are by jules on Saturday August 29, 2015 @07:44PM (#10141758)
FYI, in geometric algebra you can truly multiply two vectors and get another element of the geometric algebra out, no matter the dimensionality.
Re:Linear Algebra: What matrices are by tomadi on Saturday August 29, 2015 @09:43PM (#10141980)
But the product isn't a vector of the same shape as the inputs, so it isn't a vector multiplication. It is tensor multiplication.