e04whf may be used to supply individual real optional parameters to
e04wdf. The initialization routine
e04wcf must have been called before calling
e04whf.
e04whf may be used to supply values for real optional parameters to
e04wdf. It is only necessary to call
e04whf for those arguments whose values are to be different from their default values. One call to
e04whf sets one argument value.
Each real 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 = 100.0E0
If (illcon) factol = 5.0E0
Call e04whf ('LU Factor Tolerance', factol, iw, rw, ifail)
Optional parameter settings are preserved following a call to
e04wdf and so the keyword
Defaults is provided to allow you to reset all the optional parameters to their default values before a subsequent call to
e04wdf.
A complete list of optional parameters, their abbreviations, synonyms and default values is given in
Section 12 in
e04wdf.
None.
If on entry
or
, explanatory error messages are output on the current error message unit (as defined by
x04aaf).
Not applicable.
e04wef or
e04wff may also be used to supply real optional parameters to
e04wdf.