MATLAB built-in Tutorial Study Notes 1

Variable assignment, similar

A = 1

B = 2

 

Array assignment, similar:

T = [1 2 3 4 5]

T = 1:5

T =.

 

Use the Whos command to output the currently defined variables:

Help Original:

Whos is a long form of WHO. It lists all the variables in the current
Workspace, together with information about their size, bytes, class,
Etc.

 

Draw a curve:

Plot function:

Plot (x, y), with X as the horizontal axis, y as the vertical axis, and XY as the ing relationship;

For example, draw the following Curve

Y = sin (2 * pI * t)

 

Operation:

Use: T = 0: 0. 01:1;

Defines the accuracy of T independent variables;

Use: Y = sin (2 * pI * t );

Define the function body;

Use: plot (T, Y)

Draw images;

The result is

 

Note that different precision causes different smoothness of the drawn curve;

At this time, the image can be output into many formats, such as BMP bitmap and jpg image files;

 

MATLAB built-in Tutorial Study Notes 1