Operation Manual

Chapter 2: Math, Angle, and Test Operations 49
Solving for a Variable in the Equation Solver
To solve for a variable using the equation solver after the equation has been stored on the equation
entry screen, follow these steps.
1. Select
B: Solver from the MATH menu to display the interactive solver editor, if not already
displayed.
2. Enter or edit the value of each known variable. All variables, except the unknown variable, must
contain a value. To move the cursor to the next variable, press Í or †.
3. Enter an initial guess for the variable for which you are solving. This is optional, but it may help
find the solution more quickly. Also, for equations with multiple roots, the TI-84 Plus C will attempt
to display the solution that is closest to your educated guess.