The name of each LAPACK95 routine has been made as similar as possible to
its name in LAPACK.
All driver and computational routines
have names
of the form LA_YYZZZ, where for
some routines the 8 character is blank.
The two letters YY indicate the type of matrix (or
of the most significant matrix).
Most of these two-letter codes apply to both real and complex matrices;
a few apply specifically to one or the other, as indicated in Table
2.1.
GB | general band |
GE | general (i.e., unsymmetric, in some cases rectangular) |
GG | general matrices, generalized problem (i.e., a pair of general matrices) |
GT | general tridiagonal |
HB | (complex) Hermitian band |
HE | (complex) Hermitian |
HP | (complex) Hermitian, packed storage |
PB | symmetric or Hermitian positive definite band |
PO | symmetric or Hermitian positive definite |
PP | symmetric or Hermitian positive definite, packed storage |
PT | symmetric or Hermitian positive definite tridiagonal |
SB | (real) symmetric band |
SP | symmetric, packed storage |
ST | (real) symmetric tridiagonal |
SY | symmetric |