transpose error, linear system

Hello,

i am trying to solve a problem of Ax=B, I pass my c++ variables to matlab, and then i want to solve the problem and get it back. I have a nXn matrix and to solve the issue of c++ row base with matlab column base i load the transpose matrix like:

engPutVariable(ep, "Am",Am);

engPutVariable(ep, "Bm",Bm);

engPutVariable(ep, "Rm",Rm);

engEvalString (ep, "Am = transpose(Am);");

engEvalString (ep, "Rm = linsolve(Am,Bm);");

Rm = engGetVariable(ep,"Rm");

When i tried an example of 3x3 it computes correctly the 2 of the 3 values an on the third is garbage. Any ideas? Thanks you all.