# Compatible

Confirms that the operation yy = this * xx is well defined.

## Synopsis

    #include "tao_solver.h"
    int TaoMat::Compatible(TaoVec *xx, TaoVec *yy, TaoTruth *flag)

## Input Parameters

xx,yy -vectors like those that will be used for matrix-vector multiplication

## Output Parameters

flag -whether or not a matrix vector product can be performed.

Level:developer
Location:src/matrix/taomat.c
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