How to remove matrix dimension exceeds issue.

How to remove matrix dimension exceeds issue.

[Stephen23]

Do NOT use global variables, use an anymous function to pass extra parameters to the function:

https://www.mathworks.com/help/matlab/math/parameterizing-functions.html

Answer 1

[Luis FigueroaFernandez]

Hi Zain,

Couple of things, first, I dont see 'y' defined within your lobal variables (which local variabler are not really recommended in good programming practices), and second, for you to use 'y' within a function you would have to share the variable while calling and receiving the function.

eg:

%Calling your function
[x,y] = solbasic(y)

%...
    
function [x,y] = solbasic(y)
global tspan x0 C T_wi
    [~, x] = ode15s(@basic, tspan, x0);
    y = x*C' + T_wi;
    disp(y)
end

[Zain]

Still not working.

[Luis FigueroaFernandez]

Yust checked again and you haven't declared 'y' at all. You have to create 'y' in your main code, you cannot share a variable that doesn't exist.

y = 0;

Before shaing it to the funcion