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Programming

Introduction

This chapter describes how to program using the hp 39gs. In this chapter you’ll learn about:

•using the Program catalog to create and edit programs

•programming commands

•storing and retrieving variables in programs

•programming variables.

H I N T More information on programming, including examples and special tools, can be found at HP’s calculators web site:

http://www.hp.com/calculators

The Contents of a Program

Structured Programming

An HP 39gs program contains a sequence of numbers, mathematical expressions, and commands that execute automatically to perform a task.

These items are separated by a colon ( : ). Commands that take multiple arguments have those arguments separated by a semicolon ( ; ). For example,

PIXON xposition;yposition:

Inside a program you can use branching structures to control the execution flow. You can take advantage of structured programming by creating building-block programs. Each building-block program stands alone—and it can be called from other programs. Note: If a program has a space in its name then you have to put quotes around it when you want to run it.

Programming

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