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Desktop Basics

When you start MATLAB, the desktop appears in its default layout.
The desktop includes these panels:
  • Current Folder — Access your files.
  • Command Window — Enter commands at the command line, indicated by the prompt (>>).
  • Workspace — Explore data that you create or import from files.
As you work in MATLAB, you issue commands that create variables and call functions. For example, create a variable named a by typing this statement at the command line:
x = 1
MATLAB adds variable a to the workspace and displays the result in the Command Window.
x = 

Create a few more variables.
y = 2
y = 

z = x + y
z = 

d = cos(x)
d = 

When you do not specify an output variable, MATLAB uses the variable ans, short for answer, to store the results of your calculation.
ans =

If you end a statement with a semicolon, MATLAB performs the computation, but suppresses the display of output in the Command Window.
e = x*y;
You can recall previous commands by pressing the up- and down-arrow keys, ↑ and ↓. Press the arrow keys either at an empty command line or after you type the first few characters of a command. For example, to recall the command b = 2, type b, and then press the up-arrow key.

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