Question

Matlab plot x[n] signal

Asked by: ddlam

Hi all, I am new to mathlab. Please warn me if I miss some information for the question.
I see a command window in matlab 7.1.
How can I plot below signal y[n]?
http://s69.photobucket.com/albums/i59/ddlam2/?action=view&current=signal.png

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Asked On
2007-07-21 at 06:45:15ID22711513
Tags

matlab

,

plot

,

signal

Topics

MatLab Programming Language

,

Math & Science

Participating Experts
2
Points
125
Comments
2

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Answers

 

by: asood314Posted on 2007-07-21 at 07:25:27ID: 19539221

Matlab has built-in plotting functions.  If you go to the help menu and look up "plot", you should be able to find a plotting function that accepts two arrays as parameters.

 

by: mgh_mgharishPosted on 2007-07-26 at 12:09:15ID: 19577298

PLOT function is used for continuous domain functions.

For discrete domain functions, as is the case now, you should use STEM function


So, the command will be something like (I don't have MATLAB installed, so I have not checked it)

> n=-5:0.5:5;
> x(n)=exp(j*(0.4*pi*n-0.5*pi));
> y(n)=x(n)-x(n-1);
> stem(y,n)

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