To enter the **Solver** application, highlight the app using the directional keys. Press the ** ok** key to enter the application. This application allows you to solve equations and systems of equations with both exact and numerical solutions. Enter an equation and receive the corresponding solutions.

The first screen of the application allows you to choose between **Equations** (for solving equations) and **Finance** (for solving financial calculations).

You may begin entering your equation as soon as you enter the application. You may also choose to utilize one of the equation templates. To use an equation template:

- Highlight
**Add equation**. - Press the
key. The list of equation templates will appear. The templates may be modified to fit your needs.*ok* - Highlight your desired template.
- Confirm with the
key. Your equation template will now be located in the editing field.*ok* - Use the directional keys and numerical keys to enter your desired equation.
- Confirm with the
key.*ok*

To enter an equation without utilizing a template:

- Being entering your equation as soon as you enter the
**Equations**application. You may utilize any lower case letter as a variable. To utilize x as your unknown value press thekey.*xnt* - Once you are happy with the equation you have entered, press the
key to confirm.*ok* - You may now add more equations, or highlight
**Solve the equation**. - Press the
key to receive the result(s) of your equation.*ok*

To display the equal sign, press

followed by theshiftkey. If you confirm without an equal sign in your equation, it will be added automatically.pi

To obtain the solution(s) of your equation:

- Enter the equation(s) you wish to solve.
- Highlight
**Solve the equation**at the bottom of the screen. - Press the
key to receive the solution(s).*ok*

If the input equation is a quadratic equation, the solutions are automatically given in an exact form.

The table will display the value of the discriminant for quadratic equations.

Most often, solutions are computed numerically and their value is often approximated.

When you press the **Solve the equation** button, the application may require you to set an interval in which to search for the solution.

Set the values of **Xmin** and **Xmax** and highlight **Solve the equation**. Confirm with the ** ok** key.

If there are many solutions, the calculator will only display the first ten.

You may enter more than one equation to be solved as a system. To enter a system of equations:

- Enter the first equation in your system.
- Confirm with the
key.*ok* - Highlight
**Add equation**. - Confirm with the
key.*ok* - Choose your desired template.
- Enter the second equation.
- Confirm with the
key. Your second equation has been entered and the equations will be displayed as a system.*ok*

You may add up to 6 equations.

The application solves linear systems with real or complex coefficients.

To obtain the solutions, highlight **Solve the system** at the bottom of the screen and press the ** ok** key.

The application gives the solutions in exact form. It also indicates if there are infinitely many solutions or if there is no solution.

In the Finance part, you can choose the parameter to be solved in the context of simple or compound interest and then enter the data so that the calculator calculates the value sought.

- Choose Simple interest or Compound interest
- Choose the parameter you want to calculate
- Enter the known values
- Select Confirm to solve