HP MLIB User's Guide Vol. 2 7th Ed.

Chapter 13 Sparse Linear Equations 915
Matrix structure input by finite element DSLEIE
Notes Calls to DSLEIE can be intermixed with calls to DSLEI1. DSLEIC and
DSLEIM cannot be used if DSLEI1 or DSLEIE is used.
Example Rows and columns 345, 346, 347 and 989 form a small dense submatrix of A.
Add the positions consisting of all pairs of numbers from this set to the list of
nonzeros in the matrix.
INTEGER*4 NNODE,NODLST(10),IER
REAL*8 GLOBAL(150)
NNODE = 4
NODLST(1) = 345
NODLST(2) = 346
NODLST(3) = 347
NODLST(4) = 989
CALL DSLEIE (NNODE,NODLST,GLOBAL,IER)
IF ( IER .NE. 0 ) THEN
handle error condition
ENDIF