Calculator 411
Creating a system of equations
1. On the Utilities tab, click to display the templates.
Handheld: Press
t.
2. Select .
The Create a System of Equations dialog box displays.
3. Type the
Number of Equations, and select OK.
Calculator displays a template with spaces for the equations.
4. Type the equations into the template, and press · to define the
system.
Deferring evaluation
You don’t have to complete and evaluate an expression as soon as you
begin typing it. You can type part of an expression, leave to check some
work you did on another page, and then come back to complete the
expression later.
Working with variables
When you first store a value in a variable, you give the variable a name.
• If the variable does not already exist, Calculator creates it.
• If the variable already exists, Calculator updates it.
Variables within a problem are shared by TI-Nspire™ math and science
learning technology applications. For example, you can create a variable
in Calculator and then use or modify it in Graphs & Geometry or Lists &
Spreadsheet within the same problem.
For detailed information about variables, refer to the guidebook chapter
“Using variables.”
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