Simplex Method on Graphing / TI-84 Calculator
Learn how to solve the simplex method on a TI-84 or graphing calculator using matrix operations and row functions.
Simplex Calculator
How Simplex Method Calculator Works
Enter the LP Problem
Type the objective function coefficients and every constraint row with its right-hand-side value.
Choose Maximize or Minimize
Pick your optimization goal. The tool builds the initial tableau with slack variables automatically.
Run the Pivot Iterations
The calculator identifies pivot column by Cj-Zj, computes ratios, performs elementary row operations until optimal.
Read the Optimal Solution
Final tableau displays optimal variable values, Zj row, and the maximum/minimum objective value.
Sample Simplex Tableau Output
Example tableau iteration for a 2-variable maximization problem
| Basis | x1 | x2 | s1 | s2 | RHS | Cj-Zj |
|---|---|---|---|---|---|---|
| x1 | 14 | 0 | 0 | 1 | 14 | 0 |
| x2 | 7 | 1 | 0 | 0 | 7 | 5 |
| Zj | 35 | 5 | 0 | 0 | 35 |
Simplex on a TI-84
To run the simplex method on a TI-84 or other graphing calculator, store the initial tableau as a matrix (MATRIX → EDIT), then use rowSwap, *row, and *row+ from the MATRIX → MATH menu to perform each pivot. The online solver on this page does the same row operations instantly so you can check your TI-84 work.
Casio and Other Calculators
Casio scientific calculators have no dedicated simplex function, but their Matrix mode performs the row operations needed for each pivot. For a complete, automatic solution with step-by-step tableaus, use the calculator at the top of this page.
Related calculators
Frequently Asked Questions
How to solve simplex method using graphing calculator?
On a TI-84, store the tableau in a matrix using MATRIX > EDIT, then use row operations via MATRIX > MATH (rowSwap, *row, *row+). Alternatively, use a dedicated simplex app available for TI calculators.
Can we calculate simplex method pivot operation by Casio?
Casio scientific calculators have no built-in simplex function. However, you can manually perform matrix row operations using Casio's Matrix mode to carry out each pivot step.
How do I run the simplex method on a TI-84?
Store the tableau as a matrix, then use rowSwap, multiply-row, and multiply-row-add from the MATRIX MATH menu to pivot.
Can a Casio calculator do the simplex method?
Casio scientific calculators have no built-in simplex function, but their Matrix mode can perform the same row operations.
Is the online calculator faster?
Yes, it performs every pivot automatically and shows each tableau, so you can check your TI-84 work instantly.