calling a function in a different script.

Hi,

I'm trying to write a MATLAB code where I call a function with 3 parameters, into another script file and integrating the function I had defined earlier.

I defined my function as:

classdef trialchegg1

methods

function v=velocity(r,r0,n)

v=r.*(1-r/r0).^(1/n);

end

end

end

And the other script contains:

vmax=1.5;

r0=input('Enter the value of r0');

n=input('Enter the value for n');

y=trialchegg1.velocity(r,r0,n)

integral=quad('y',0,r0)

ave_velocity = (2*vmax/(r0^2))*integral

I am getting the error:

Unrecognized function or variable 'r'.

Error in trialchegg (line 4)

y=trialchegg1.velocity(r,r0,n)

I am trying to integrate with respect to r in the other script, using quad.

Can someone help me out?

Answer 1

[Asad (Mehrzad) Khoddam]

One solution is that you can use this command at the top of the files that use 'r'

global r;

Just after function definition