MATLAB POLYSPACE RELEASE NOTES Bedienungsanleitung PDF herunterladen (Seite 158)

4 Programming

Scripts and Functions

In this section.. .

“Overview” on page 4-20

“Scripts” on page 4-21

“Functions” on page 4-22

“Types of Functions” on page 4-24

“Global Variables” o n page 4-26

“Passing String Arguments to Functions” on page 4-27

“The eval Function” on page 4-28

“FunctionHandles”onpage4-28

“Function Functions” on page 4-29

“Vectorization” on page 4-31

“Preallocation” on page 4-32

Overview

MATLAB is a pow erful programming language as well as an interactive

computational environment. Files that contain code in the M ATLAB language

are called M-file s. You create M-files using a text edito r, then use them as you

would any other MATLAB function or command.

TherearetwokindsofM-files:

• Scripts, which do not accept input arguments or return output arguments.

They operate on data in the w orkspace.

• Functions, which can accept input arguments and return output arguments.

Internal variables are local to the function.

If you’re a new MATLAB programmer, just create the M-files that you want

to try out in the current directory. As you develop more of your own M-files,

youwillwanttoorganizethemintootherdirectories and personal toolboxes

that you can add to your M ATLAB search path.

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MATLAB POLYSPACE RELEASE NOTES Bedienungsanleitung Seite 158