Doug’s MATLAB Video Tutorials

December 21st, 2007

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.
Find the files here. PodCast here Other videos have been gathered here: http://blogs.mathworks.com/pick/category/video/ Other MATLAB Basics posts have been gathered here: http://blogs.mathworks.com/pick/category/matlab-basics/

By Doug Hull

10:18 UTC | Posted in Format: PodCast, Format: Video, Level: Basic | Permalink |

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5 Responses to “MATLAB Basics: Functions and subfunctions”

  1. JanKees replied on December 22nd, 2007 at 05:55 UTC :

    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

  2. Justin replied on January 5th, 2008 at 04:28 UTC :

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

  3. Doug replied on January 7th, 2008 at 09:48 UTC :

    Justin,

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

    Enjoy,
    Doug

  4. Justin replied on January 8th, 2008 at 09:58 UTC :

    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?

  5. Doug replied on January 8th, 2008 at 10:13 UTC :

    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

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