Revision as of 15:25, 2 December 2014 edit Hermann Döppes (talk \| contribs) 13 edits m Set mathy stuff (Variables, >= aka \ge) in math mode. ← Previous edit		Revision as of 10:36, 9 December 2014 edit undo 131.211.63.92 (talk) →Leaving variable selection Next edit →
Line 123: Next, the pivot row must be selected so that all the other basic variables remain positive. A calculation shows that this occurs when the resulting value of the entering variable is at a minimum. In other words, if the pivot column is ''c'', then the pivot row ''r'' is chosen so that :<math>b_r / a_{crrc}\,</math> is the minimum over all ''r'' so that ''a''<sub>''crrc''</sub> > 0. This is called the ''minimum ratio test''.<ref name="Murty66"/> If there is more than one row for which the minimum is achieved then a ''dropping variable choice rule''<ref>{{harvtxt\|Murty\|1983\|p=67}}</ref> can be used to make the determination. === Example ===

Simplex algorithm: Difference between revisions