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 * Classpad 330 Calculator **toc

How to Solve Simultaneous Equations
Go to the Main Screen
 * Either by clicking on Main in the main menu
 * Or by clicking on Main in the green icon bar

It is possible to use the __**solve**__ command to solve simultaneous equations but it is easier to use the the method shown here.

You will need to use the icon shown here to enter the equations to be solved. This icon is in the initial screen of the 2D tab of the virtual keyboard (circled in red)

Clicking on the simultaneous equations icon produces the empty form shown at the top of the screen to the right.


 * Enter the two equations to be solved in the two boxes on the left of the vertical line.


 * Enter the variables to be solved for (separated with a comma) in the box on the right of the vertical line


 * Press EXE

As shown a the bottom of the screen on the right, the solution will appear as a list.

Non-Linear Equations
Proceed in exactly the same way. Click on the sim eqns icon and fill it in with your equations.

The example to the right shows the result of finding the interesection between a straight line and a parabola.

Note there are 2 solutions. You would have to tap the tiny black arrow on the right of the screen to see the complete second solution.

3 Equations
Click on the sim eqns icon then immediately click it again.

This will produce a form with three blank squares for equations.

Proceed as above by filling in the equations and then the variable names separated by commas.

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