MATLAB Basics: Functions and subfunctions

This six and a half minute video shows a function being created in MATLAB, then it shows a subfunction being added. Functions are a way of adding to the MATLAB language. This video shows the creation of a simple function, and then adding a subfunction to that original function.

Video Content

Find the files here.
PodCast here

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5 Responses to “MATLAB Basics: Functions and subfunctions”

JanKees replied on December 22nd, 2007 at 5:55 am :

Doug:

Good tutorial, as always. One thing that every time confuses me are the varargin, nargin, varargout, nargout options in a function. I believe that many users of Matlab also have the same problem.

Could you, in a future post (may be a video), talk about them? I would be very gratefull if this happens.

Yours,

JanKees

Justin replied on January 5th, 2008 at 4:28 am :

can you show me how to write another function the would ask the user the value for the input of the variable

Doug replied on January 7th, 2008 at 9:48 am :

Justin,

You are going to want to use the INPUT command.
>> a = input(’Give me a number: ‘)

Enjoy,
Doug

Justin replied on January 8th, 2008 at 9:58 am :

function [choose] = a()
choose=input(’Solve ‘,’s’);

switch choose
case {’Is’}
h()
case ‘Ic’
disp(’c')
otherwise
disp(’unknown’)
end;

displayed in the command window

ans

Is
What if i dont want Is to be displayed what should I do?

Doug replied on January 8th, 2008 at 10:13 am :

Justin,

The display is coming from the results of the function a() being called.

>>a();

The semicolon will supress the print as you want.

Doug

About

Doug Hull is an Application Engineer at The MathWorks. A MATLAB user since 1994, he gets paid to live, eat, and breathe MATLAB! This blog is dedicated to promoting the File Exchange by highlighting files and original video content.

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