Linear systems calculator

The calculator may be used to solve systems of three linear equations in three unknowns. The calculator is intended to teach students the Gaussian elimination process and to relieve them from some of the tedious aritmetic. To solve larger systems you should use profesionally written software available for free over the internet and commercially. To solve 

æ a11 x + a12 y + a13 z = b1 ö
ç a21 x + a22 y + a23 z = b2 ÷
è a31 x + a32 y + a33 z = b3 ø
enter the coefficients 

æ a11 a12 a13 b1 ö
ç a21 a22 a23 b2 ÷
è a31 a32 a33 b3 ø
and press the "Enter matrix" button.

Solve the linear system.

If all you need is the solution press the "Solve" button. The calculator will
  1. Compute the unique solution OR
  2. Give a message that there are an infinite number of solutions OR
  3. Give a message that there are no solutions.

Practice the gaussian elimination process.

To obtain a better understanding of the Gaussian elimination process enter the elementary row operation and press the appropiate "Do" button. If you make a mistake you may use press the appropiate "Undo" button. Remember the goal is to obtain 0's in all the positions below the diagonal.
AUGMENTED MATRIX
x1 x2 x3 RHS



SOLUTION
x1 =
x2 =
x3 =
ELEMENTARY ROW OPERATIONS
Exchange rows
Replace row with itself minus times row
Multiply row by

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