Robert Jacques wrote:
On Fri, 10 Jul 2009 06:24:04 -0400, Lars T. Kyllingstad
<pub...@kyllingen.nospamnet> wrote:
There are actually three (four) basic types of vector/matrix
multiplication, and the * operator would more or less be fitting for
any of them:
- element-by-element multiplication, which is what * means now
- dot product
- matrix multiplication
(- cross product )
Actually, matrix multiplication and the dot product are both cases of
the inner product and the cross product is specific to 3D vectors.
Actually, the dot product is both a special case of matrix
multiplication and an inner product. Matrix multiplication in general is
not an inner product, since an inner product always associates two
vectors with a scalar.
That aside, my point was simply that there are several operations for
which one may want to use the '*' operator, and there is only one '*'. :)
-Lars
