Variables

Rather than using hard coded numbers, it makes sense to use variables. Variables are useful because they can be used in an expression instead of the value they hold, making the expression more meaningful for the programmer. They can be given any name you wish (as long as it isn't already in use by Matlab).

>> x = 3*2.0

ans = 

6

>> y = x + 2

ans = 

8

Try the following:

>> x <return> 
>> who <return>
>> whos <return>
>> clear all <return>
>> whos <return>