Using Maths Actions 

Maths Actions are available on Notes and Calculator pages.

When you display the context menu for a selected expression or equation, the menu may include a Maths Actions submenu that lists the available actions. Each action might prompt you for any needed parameters.

The specific maths actions listed depend on:

The type of expression or relation.
The operating system in use (numeric or CAS).

Example of Maths Actions in Notes

1. Insert a maths box, and type the equation x2+3x+1=0, but don't press Enter yet.


Numeric OS


CAS OS

2. Tap the equation to display its context menu, and select Maths Actions.


Numeric OS


CAS OS

3. Select the action to perform:
- Solve Numerically for numeric OS.
- Solve for CAS OS.

You are prompted to enter parameters. For example, Numeric Solve prompts for the variable of interest, initial guess, lower bound and upper bound.

4. Type a value for each parameter. When options are available, you can tap an arrow to make a selection.


Numeric OS


CAS OS

5. Tap OK to construct the completed expression and place it in the maths box.


Numeric OS


CAS OS

6. Press Enter to complete the action.


Numeric OS


CAS OS

7. As a further exploration, select x2+3·x+1. Do not include the "=0" portion.


Numeric OS


CAS OS

8. Display the context menu for the selected text, select Maths Actions > Find Roots of Polynomial, and press Enter to complete the action.

The action and its result are shown in a new maths box.


Numeric OS


CAS OS

Tips for Using Maths Actions in Notes

For a previously evaluated expression, tap the expression to display its context menu.

When you select an action, it replaces the expression.

For a displayed result, tap the result to display its context menu.

When you select an action, it appears in a new maths box.

For a portion of an expression or result, select the portion and then display the context menu.

When you select an action, it appears in a new maths box.