A H x Table 67. It must be 'N', 'T', or 'C'. It has an upper band width mu and a lower band width ml .
All subroutines accept lowercase letters for the transa argument.
Function The possible computations that can be performed by these subroutines are described in the following sections. Varying implementation techniques are used for this computation to improve performance. As a result, accuracy of the computational result may vary for different computations. Occasionally, for performance reasons, these intermediate results are truncated to short precision and stored. No computation is performed if m or n is 0 or if alpha is zero and beta is one.