MATLAB Introduction

Trygve EftestølKarl Skretting

Aim of the course

• Get to know MATLAB– What is MATLAB?

• Why use MATLAB?

– Basic training• User interface• Basic functions• Visualisation• Programming• Analysis

Hva er MATLAB?

• Why use MATLAB?– Mathematcal

computations– Visualisation– Analysis– Used a lot for problem

solving • Cybernetics • Signal processing• Image processing• Pattern recognition• …

Basic training

• User interface• Basic functions• Visualisation• Programming• Analysis

User interface

• Command window

• Workspace• Editor• Help

User interface

• Command window

User interface

• Workspace

User interface

• Editor

User interface

• Help– Contents– Index– Search– Demo

Basic functions

• Create matrices• Matrix operations• Matrix functions• Matrix indexing• Logical operations

Basic functions

• Create matrices– Scalar– Vector– Matrix

Basic functions

• Matrix operators

Basic functions

• Matrix functions

Basic functions

• Matrix indexing

Basic functions

• Logical operators

Visualisation

•2D-plotting•3D-plotting

Visualisation

• 2D-plotting

Visualisation

• 3D-plotting

Visualisation

• 3D-plotting

Programming

• Function files• Control structures

– if– while– for

Programming

• Function files

Programming

• Condition control using if

Programming

• Iterations using while

Programming

• Iterations using for

Analysis

• Estimate pulse rate – Reading from data file– Plotting of signal– Detection of peaks– Problem – false

detections• Spectral analysis• Filtering

Analysis

• Reading from data file

• Plotting of signal• Detection of peaks

Analysis

• Problem – false detections– Spectral analysis– Filtering