Graphics Programs Reference

In-Depth Information

matlab will recall the last command that began with those characters.

Subsequent use of

↑

will recall earlier commands that began with those

characters.

2.3 Long Lines

If you want to type a matlab command that is too long to fit on one

line, you can continue on to the next by ending with a space followed by

three full stops. For example, to type an expression with long variable

names:

Final_Answer = BigMatrix(row_indices,column_indices) + ...

Another_vector*SomethingElse;

Or to define a long text string:

Mission = ['DSTO''s objective is to give advice that' ...

'is professional, impartial and informed on the' ...

'application of science and technology that is best' ...

'suited to Australia''s defence and security needs.'];

2.4 Copying and Pasting

Your windowing system's copy and paste facility can be used to enter

text into the matlab command line. For example all of matlab's built-

in commands have some helpful text that can by accessed by typing
help

followed by the name of the command. Try typing
help contour
into

matlab and you will see a description of how to create a contour plot.

At the end of the help message is an example. You can use the mouse

to select the example text and paste it into the command line. Try it

now and you should see a contour plot appear in the figure window.

3 Matrices

3.1 Typing Matrices

To type a matrix into matlab you must

•

begin with a square bracket
[

•

separate elements in a row with commas or spaces

•

use a semicolon
;
to separate rows

•

end the matrix with another square bracket
]
.

For example type: