product assign operator for vector-matrix operation

[Ray Kim]

This is a feature request.

Currently, there is no overload that allows this form

auto vec = blaze::DynamicVector<T>(5);
auto mat = blaze::DynamicMatrix<T>(5, 10);

vec *= mat;

Since the result of a vector-matrix dot product is a vector, I think this operation should be available.

[Klaus Iglberger]

Hi!

Thanks for the proposal. We agree that this extension would be useful if it is consistently used for both row vectors and column vectors:

blaze::DynamicVector<double,blaze::columnVector> x;
blaze::DynamicVector<double,blaze::rowVector> y;
blaze::DynamicMatrix<double> A;
// ... Resizing and initialization

x *= A;  // Same as 'x = A * x'
y *= A;  // Same as 'y = y * A'

We will try to implement this feature within the next releases.

Best regards,

Klaus!

[Klaus Iglberger]

The feature has been implemented, tested, and optimized as required. It is immediately available via cloning the Blaze repository and will be officially released in Blaze 3.3.

[Ray Kim]

Thanks for the great work!

[Ray Kim]

This feature was added to Blaze 3.3