Math245 Lab set #1
Fall 2008
Page 1
Introduction to Matlab Basics 1
Matlab desktop
1. Variable assignment and arithmetic operations
You can create any variables by assigning values to it in the form:
(your variable name ) = (expression)
General rule here is the notation " = " is NOT the same as the mathematical equality.
" = " is called
assignment operator. Your specified (expression) in rhs is assigned to (your specified variable name). Like
using your calculators, you can do arithmetic operations by using arithmetic operators, i.e., + : addition, - :
subtraction, * : multiplication, / : division, and ^ : exponentation.
You can also use standard mathematical
functions (e.g., sin, cos, exp, tanh, etc.) provided in Matlab package.
Example 1:
a = 1.0
a =
1
Command window
(you put matlab
command in here)
Command history
window (shows
history of
command)
File list of current
working directory
Current working
directory

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