On 26/08/2011 16:45, Eric Niebler wrote:
Before I answer, can you tell me why you've decided to put vector and
matrix operations into separate domains? This seems like an artificial
and unnecessary separation to me.

We have a system of specialisation where being able to make this distinction allowed us to replace sub proto tree by a pregenerated call to some BLAS functions or to apply some other Linear Algebra math based simplification.

We also have a covector domain which allow us to know that : covector * vector is a dot product while vector * covector generate a matrix. In the same way, covector * matrix and matrix * vector can be recognized and handled in a proper way.

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