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Simplex Method Utility: A Homework Help Tool for Finite Math & Linear Programming

This simplex method utility is fairly user-friendly. Press the "example" button to see an example of a linear programming problem.

• Do not use commas in large numbers. For example, enter 12,345 as 12345.
• The utility is quite flexible with input. For instance, the following format will also be accepted (inequalities seperated by commas):

Maximize P = x + y subject to x + y <= 6, 3x + y >= 8

Of course "P" means profit, and we ALWAYS want to maximize profit!!! ;-)
You can also use a "minimize" command option, for example to minimize cost.
Note that "<=" means "less than or equal to" and ">=" means "greater than or equal to".

• Decimal mode displays all the tableaus (and results) as decimals, rounded to the number of significant digits you select (up to 13, depending on your processor and browser).
• Fraction mode converts all decimals to fractions and displays all the tableaus (and solutions) as fractions.
• Integer Mode eliminates decimals and fractions in all the tableaus and displays the solution as fractions.
• Mac users: you can use the inequality symbols "option+<" and "option+>" instead of "<=" and ">=" if you like, but some browsers may have trouble with this.
Solution Display Some browsers (including some versions of Internet Explorer) use a sans serif proportional width font in text boxes. This will cause the display of solutions to appear a little messy. You can remedy this by changing the "Sans Serif" font in your browser preferences to "Courier" or some other fixed-width font, and then reloading the page.

Enter your linear programming problem below. (Press the "Example" button to see the set-up.)

      Rounding: significant digits  
The tableaus will appear here.