Not enough input arguments - can't figure out what f-n missing argument

Hi, I'm trying to test and play with this code:

http://www.mathworks.com/matlabcentral/fileexchange/31112-deflection-of-a-cantilever-beam/content/beam%20deflection/beam_deflection.m

But when I run it, I get "Not enough input arguments" error.

I can't figure out what parameters should I specify beforehand to be able to run the code.

Thanks

[Walter Roberson]

How are you invoking it? What are you doing to start it running?

[Timur]

I'm running it with these parameters: l=10; dl=0.01; load=repmat(10,1,1001);

I think "ei" should be set up as well. I'm confused what ei stands for.

[Walter Roberson]

How are you running it? Which keys are you pressing, or which menu entries, or what command?

http://www.engineeringtoolbox.com/cantilever-beams-d_1848.html

EI is the product of the Young's Modulus and the Moment of Intertia.

[Timur]

Thank you for the link!

I'm running it by pressing Run button: http://blogs.mathworks.com/images/desktop/ken_orr_profiling_using_run_configurations/run_button.jpg

Answer 1

[Walter Roberson]

If you attempt to run a function by pressing the Run button, then the function will be started without any input arguments. When the function attempts to access any of the arguments, MATLAB will generate the error about "not enough input arguments". MATLAB will not prompt for the arguments to be given. Also, MATLAB will not use variables of the same name that were created at the command line.

You need to start the function from the command line, passing in the appropriate values. For example, at the command line type

beam_deflection(10 * ones(1,1001), 4.19, 10, 0.01)