Application Guide

Calculator Application
The Calculator application enables you to enter and evaluate math expressions. You
can define variables, functions, and programs in Calculator. When you define or edit a
variable, function, or program, it becomes available to other applications—such as
Graphs or Geometry—that are part of the same problem.
What You Can Do
The Calculator Tools menu provides the tools you need to:
• Complete actions.
• Work with numbers.
• Work with math functions such as algebraic expressions, calculus problems,
probability, and statistics.
• Work with matrices and vectors.
• Create and solve financial equations.
• Define and edit functions, variables, and programs.
Tools Search
Tools Search allows you to search options and menus. It is available across all
applications in the TI-Nspire™ App.
Warning: Tools Search will allow you to search for menu items, but not for command
names.
What You Must Know
Deferring Evaluation
You don't have to complete and evaluate an expression as soon as you enter it. You can
enter part of an expression, leave the page to check work on another page, and then
come back to the page to the complete the expression at a later time.
Forcing a Decimal Approximation
To force a decimal approximation in a result, complete one of the following actions:
▶ Touch and hold ENTER, and then slide to select to evaluate the expression.
▶ Include a decimal in the expression.
▶ Wrap the expression in the approx() function.
Calculator Application 28