CEDELE, NEQN1, NEQN2, NINC, Nsel
Deletes constraint equations.
NEQN1, NEQN2, NINCDelete constraint equations from NEQN1 to NEQN2 (defaults
to NEQN1) in steps of NINC (defaults
to 1).  If NEQN1 = ALL, NEQN2 
and NINC will be ignored all constraint equations
will be deleted.
NselAdditional node selection control:
ANY  | —  | Delete equation set if any of the selected nodes are in the set (default).  | 
ALL  | —  | Delete equation set only if all of the selected nodes are in the set.  |