1. Lecture 4. Matlab Basics Getting started 2D-Plots
Dr. Holbert
F06-Lect1
Lecture 4. Matlab Basics
Getting started
2D-Plots
Matrix & Linear Equations
EEE 202

2. Getting Started
Matlab program can be found at: apps.asu.edu.

3. Getting Started
Tutorials and demos can be found at
Getting Started with MATLAB (4 min 58 sec) 
Working in The Development Environment (4 min 13 sec) 
Writing a MATLAB Program (5 min 36 sec) 

4. 2D Plots
Tutorials and demos for 2D plots can be found at

5. Matrix and Linear Equations
Linear Equations (n-variables and m-equations)
…..
Matrix representation
Ax=b

6. Matrix and Linear Equations
Ax=b
Matrix representation:
x=A-1b
Solution:
Matlab representation
x=b/A

7. Matrix and Linear Equations
An example
Solve the problem with Matlab
Step 1
>> A=[-2 1 3;1 1 0; ]
Step 2
>> b=[0;1.5;0]
Step 3
>> i=b/A

8. Matrix and Linear Equations
What if
Solve the problem with Matlab
Step 1
>> A=[-2 1 3;1 1 0; ]
Step 2
>> b=[0;1.5;0]
Step 3
>> i=b/A
Step 3
Multiply the results by is

9. Matrix and Linear Equations
What if
the same
BUT
Using the superposition principle!

10. Matrix and Linear Equations
Re-write the equation as
and
Solve one at a time and add the results according to