PHPSimplex
Version 0.81

PHPSimplex 0.81

• Fixed bug with restriction of kind "≥ 0".

PHPSimplex 0.8

• Information about slack, surplus & artificial variables.
• Information about incoming and outgoing variables.
• Information about intermediate operations.
• Fixed bug with long URLs with many variables problems.
• Fixed bug with points in the Graphical Method in problems with many variables.

PHPSimplex 0.71

• Fixed bug with input variables.
• Fixed bug with direct solution.

PHPSimplex 0.7

• Optimization of the choice of the pivot element.
• Fixed bug with restriction of kind equal.

PHPSimplex 0.6

• Infinite solutions indentification in Graphical Method.
• Unbounded solution indentification in Graphical Method.
• No solution indentification in Graphical Method.
• Identification of points that don't belong to the feasible region in the Graphical Method.
• Fixed bug with the feasible region bug in the Graphical Method.
• Protection against illegal characters in Graphical Method.

PHPSimplex 0.5

• Inclusion of the Graphical Method.

PHPSimplex 0.4

• Direct solution for Simplex Method and Two-Phase Simplex Method.
• Protection against illegal characters in Simplex Method and Two-Phase Simplex Method.

PHPSimplex 0.3

• Enlargement of the decision variables.
• Optimization of the elimination of artificial variables.
• Fixed bug with empty fields.
• Fixed bug with incorrect values of the slack and surplus variables in the Two-Phase Simplex Method.

PHPSimplex 0.2

• Inclusion of the Two-Phase Simplex Method.
• Avoiding degenerated case (whenever possible).
• Infinite solutions identification.
• Unbounded solution identification.
• No solution identification.

PHPSimplex 0.1

• Simplex Method.