Graphing Calculator: Evaluating expressions

Note

This article describes how to use the expression evaluator window. If you would like to learn how type an expression, you should go to this article instead.

Content

• Introduction
• Getting started
• Variables

Introduction

The Expression evaluator is a tool within the Graphing Calculator which can compute the result of a typed mathematical expression.

Getting started

To evaluate an expression, follow the following steps:

Step 1: In the application window, click the Evaluate button.
Step 2: Type an expression in the Input expression field.
Step 3: Add variables to the variable list if needed.
Step 4: Click Evaluate.

Example:

Variables

A description of what variables are, and why they are useful can be found in the language article.

To use variables in the evaluator window, you need to type the name in the Name field, the value in the Value field, and click Add. If a variable with the same name already exists, you will be prompted if you want to replace the old value.

The value of a variable can also be an expression, it doesn't have to be a simple number.

To remove a variable from the list, or edit it, simply right click, and a menu will appear.