19-Gauss-Seidel Method |Solve 3x3 System on fx-991ES Plus- MA 301- Numerical Methods- Dr. Zahir Math

In this video, we demonstrate the Gauss-Seidel method to solve a 3x3 system of linear equations using the fx-991 ES Plus calculator.

We will solve the system:

3x − y + z = 1
3x + 6y + 2z = 0
3x + 3y + 7z = 4

Iteration Formulas Used:
A = 1/3 (1 + B − C):B = 1/6 (−3A − 2C):C = 1/7 (4 − 3A − 3B)

We will iterate to four decimal places. This method is important for chemical engineering and other engineering applications where solving systems of linear equations is common.

Try it yourself on your fx-991ES Plus calculator!"*