Nested function global variable

function T = fun(theta)
global m
m = theta^2;
T = quad(@fun2,0,1)
end

function out = fun2(t)
       out=( (1-m*t^2)*(1-t^2)  );
    end

I have the two functions above. When I call for fun, it does not seem to be working. I am new to Matlab so it would be greatly appreciated if someone could help my understanding. Thanks

Answer 1

[Thorsten]

Add global m to your fun2; I also used point-wise multiplication and exponentiation to make it work.

function T = fun(theta)
global m
m = theta^2;
T = quad(@fun2,0,1)
end

function out = fun2(t)
global m
out=( (1-m*t.^2).*(1-t.^2)  );
end

Alternatively, you could define fun2 as an anonymous function; note that here fun2 is already a function handle, so you have to pass with without the @ to quad:

function T = fun(theta)
global m
m = theta^2;
fun2 = @(t) (1-m*t.^2).*(1-t.^2)
T = quad(fun2,0,1)
end

[Robbie Peck]

Thank you- It's the point wise stuff I'm not used to. I'm used to R!

Answer 2

[Julia]

Hi,

try this link:

http://de.mathworks.com/help/matlab/ref/global.html