Press the black power key to switch the device on and off.

When you turn the device on for the first time, you may choose your language before getting to the home menu called Applications. This screen shows all the applications available on the NumWorks calculator. You may return to the home menu at any time by pressing the yellow home key.

You can navigate between applications on the home screen with the directional keys. Select the application you wish to use and press OK to open it.

If you would like to make changes to settings that apply to all applications, go to Settings app. Here you can choose your angle measure, language and more.

## Introduction

Get started with your NumWorks graphing calculator. This chapter covers everything you need to know to start using the calculator from using the calculator keyboard to navigating the home screen.

## Calculation

Perform a variety of computations involving complex numbers, matrices, trigonometry, combinatorics, derivatives, integrals, and unit conversions.

## Grapher

Plot the graph of functions, curves, conics and inequalities, view the coordinates of your points, find key characteristics, and consult a table of values.

## Equations

Solve equations and systems of equations with both exact and numerical solutions.

## Statistics

Study data sets and view statistical values relevant to your set: mean, standard deviation, minimum or maximum and more. You may also plot boxplots, histograms and other graphical representations for your data set.

## Regression

Create scatterplots and perform statistical computations on two-dimensional data sets. Plot regression models, make predictions and view residuals.

## Sequences

Plot both recursive and explicit sequences, view a table of their values and compute the sum of their terms.

## Distributions

Study different probability distributions such as Binomial, Geometric or Normal.

## Inference

Perform hypothesis tests and construct confidence intervals for means, proportions and more.

## Finance

Solve financial problems involving simple or compound interest with ease.

## Elements

View an interactive periodic table of elements. Search for an element and view its properities.

## Python

Write scripts and test them in an interactive shell. Python is an industry standard programming language you can use in class.

## Variables

Store numbers, matrices, lists and functions and use them in your calculations and across applications more easily. Press the var key to open the list of your stored values.

## Toolbox

The toolbox key gives you access to an organized library of advanced functions: calculus, combinatorics, complex numbers, etc.

## Settings

Make changes to settings that apply to all applications. Choose your angle measure, language and more. Disable features and reset your calculator

For compliance with international standards, the precautions that must be taken by the user and the information about environmental issues, see the Compliance page.