e04nuc may be used to supply individual double optional parameters to
e04nqc. The initialization function
e04npc must have been called before calling
e04nuc.
e04nuc may be used to supply values for double optional parameters to
e04nqc. It is only necessary to call
e04nuc for those arguments whose values are to be different from their default values. One call to
e04nuc sets one argument value.
Each double optional parameter is defined by a single character string in
string and the corresponding value in
rvalue. For example the following illustrates how the
stability tolerance could be defined:
factol = 100.0;
if (illcon) factol = 5.0;
e04nuc ("LU Factor Tolerance", factol, &state, &fail);
Optional parameter settings are preserved following a call to
e04nqc and so the keyword
is provided to allow you to reset all the optional parameters to their default values before a subsequent call to
e04nqc.
A complete list of optional parameters, their abbreviations, synonyms and default values is given in
Section 12 in
e04nqc.
None.
Not applicable.
e04nrc or
e04nsc may also be used to supply double optional parameters to
e04nqc.