Use of this utility is pretty intuitive. Just press the "example" button to show an example of setting up a linear programming problem. Then leave it as is, modify it, or enter a new problem, and press "Solve".

Disclaimer: Browsers sometimes crash when running computation-intensive Javascript code. Make sure your important work is saved before running this utility.

Notes on formatting:
(1) Variable names must be single letters.    (eg. p, x, y, z, s, t, u...)
(2) For fraction inputs, keep the variable on the right.    (eg. (1/3)x and not x/3)
(3) Every variable you use must appear in the objective function, (but not
    necessarily in the constraints).     (eg. p = 0x + 2y + 0z )
(4) The words 'maximize' (or 'minimize') and 'subject to' must appear.
(5) Each inequality should be on its own line, as shown.
(6) No need to enter the default constraints: x >= 0, y >= 0, z >= 0 etc.

Notes

• Do not use commas in large numbers. For instance, enter 100,000 as 100000.
• 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 <= 2, 3x+y >= 4

• 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 (although Netscape 6 appears to have difficulties 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.