[Python-ideas] Vectorization [was Re: Add list.join() please]

[Stephen J. Turnbull]

Christopher Barker writes:

 > well, vectorization is kinda the *opposite* of matrix multiplication --
 > matrix multiplication is treating the matrix as a whole,

When I think of treating the matrix as a whole, I think of linear
algebra.  Matrix multiplication is repeated application of the inner
product, which is in turn a sum over vectorized multiplication.  I
share David's intuition about this, although it might not be the
common one.

Steve