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First Order solving ODE and simulink

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Hassan Aqwa
Hassan Aqwa on 14 Apr 2021
Commented: Hassan Aqwa on 27 Apr 2021
Hello, i want to ask regarding this error. It is from solving first order and simulink. May i know where did error i did and how to solve it. Thankyou.

Accepted Answer

Divija Aleti
Divija Aleti on 22 Apr 2021
Hi Hassan,
Firstly, as you are defining all the variables inside the function, you do not need to pass them as the function's arguments.
Secondly, you are getting an error as you did not define the variable 'C' in your code. Have a look at the following code.
function dCdt = F_O()
t = 300;
Ce = 100;
C = 1; % Define the variable 'C' by giving it some value. As an example I gave C=1.
kLa = 0.0285;
dCdt = (kLa*Ce-C)/t;
end
Hope this helps!
Regards,
Divija
  2 Comments
Hassan Aqwa
Hassan Aqwa on 27 Apr 2021
Divija, i want to ask. In this equation, i want to define the C which is i have to find the value of C. so, thats why i didn't define the variables of C. So, how ya?

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