XPRSpivot
Purpose
Performs a simplex pivot by bringing variable
enter into the basis and removing
leave.
Synopsis
int XPRS_CC XPRSpivot(XPRSprob prob, int enter, int leave);
Arguments
|
prob
|
The current problem.
|
|
enter
|
Index of row or column to enter basis.
|
|
leave
|
Index of row or column to leave basis.
|
Error values
|
enter is invalid (leave of range or already basic).
|
|
|
leave is invalid (leave of range or not eligible, e.g. nonbasic, zero pivot, etc.).
|
Related controls
Double
|
Pivot tolerance.
|
|
|
Relative pivot tolerance.
|
Example
The following brings the 7th variable into the basis and removes the 5th:
XPRSpivot(prob,6,4)
Further information
Row indices are in the range
0 to
ROWS-
1, whilst columns are in the range
ROWS+
SPAREROWS to
ROWS+
SPAREROWS+
COLS-
1.
Related topics
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