id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
3397	provide overloads for operator* for matrix/vector multiplies	Gunter	David Bellot	"Since many people a familiar with using operator* we should add the corresponding overloads to uBLAS. A good reference is the syntax used by MATLAB. The final syntax should be

{{{
    matrix<double> A;
    vector<double> x;
    vector<double> y;

    cout << 2.0 * y << endl;
    cout << y * 2 << endl;
    cout << A * 2 << endl;
    cout << 2 * A  << endl;
    cout << A * y << endl;
    cout << trans(y) * A  << endl;
    cout << A * A << endl;

}}}

Similar to trans() we should provide herm() for complex matrices.

the syntax for inner and outer products could be
{{{
    vector<double> x,a,b;
    x = trans(a) * b;     // inner prod
    x = a * trans(b);     // outer prod
}}}

the syntax for products with higher precision should be
{{{
  prec(A*b);
  prec(trans(a) * b);
}}}

a *= operator should also be provided
{{{
b *= A; 
A *= B;
}}}
which could be mapped to the correspondy axpy_prod() call.

further tasks:

* find a solution for the product of three matrices which is currently only possible by stating an explicit temporary matrix.
"	Feature Requests	closed	To Be Determined	uBLAS	Boost 1.40.0	Not Applicable	duplicate