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To select variants of the simplex method use the menu LiPS>> Settings and select the desired option from the list.
The system offers a choice of four variants:
| • | Table: shows the detailed solution process in the form of a sequence of simplex tables. This method is ideal for learning purposes, but it should not be used for the problems with more than 100 constraints. |
| • | Modified with EFI: in the matrix calculations, uses an effective procedure of LU-decomposition with Elimination Form of Inverse. (high numerical stability, average speed). |
| • | Modified with PFI: in the matrix calculations, uses an effective procedure of LU-decomposition with the Multiplication Form of Inverse (average numerical stability, high speed). |
| • | Standard (Gaussian Elimination): this method is very fast, but numerically unstable. |
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