Calculates the square root of the Src matrix and stores the results to calling matrix. The product of the result with itself will give the original matrix. Because the MtxFunction method is based on the eigenvalue decomposition and the eigenvalue, the SourceType for symmetric and symmetric positive definite matrices has to be defined explicitly. 

Note The algorithm for general matrices will fail on a symmetric matrix.

MtxPower, MtxFunction

Matrix Methods