Hp Prime Graphing Calculator Manuel d'utilisateur télécharger pdf (Page 501)

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101

Programming 497

Programming

This chapter describes how to program the HP Prime. In

this chapter you’ll learn about:

• programming commands

• writing functions in programs

• using variables in programs

• executing programs

• debugging programs

• creating programs for building custom apps

• sending a program to another HP Prime

HP Prime

Programs

An HP Prime program contains a sequence of commands

that execute automatically to perform a task.

Command

Structure

Commands are separated by a semicolon ( ; ).

Commands that take multiple arguments have those

arguments enclosed in parentheses and separated by a

comma( , ). For example,

PIXON (xposition, yposition);

Sometimes, arguments to a command are optional. If an

argument is omitted, a default value is used in its place. In

the case of the PIXON command, a third argument could

be used that specifies the color of the pixel:

PIXON (xposition, yposition [,color]);

In this manual, optional arguments to commands appear

inside square brackets, as shown above. In the PIXON

example, a graphics variable (G) could be specified as

the first argument. The default is G0, which always

contains the currently displayed screen. Thus, the full

syntax for the PIXON command is:

PIXON([G,] xposition, yposition [ ,color]);

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