HP MLIB User's Guide Vol. 1 7th Ed.

Chapter 3 Basic Matrix Operations 221
Copy general matrix SGECPY/DGECPY/CGECPY/ZGECPY
n < 0
lda < max(m,1)
ldb too small
Actual character arguments in a subroutine call can be longer than the
corresponding dummy arguments. Therefore, readability of the CALL
statement may be improved by coding the trans argument as ’NORMAL’ or
’NON-TRANSPOSED’ for ’N’, ’TRANSPOSED’ for ’T’, or
’CONJUGATE-TRANSPOSED’ for ’C’.