The integral with the Trapezoidal method
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The C code, which finds the following integral with the Trapezoidal method, is given below. I want to solve this question below in Matlab but i didn't do it. This is simple question but i can't do it. If someone will help me, i will be very happy.
My tried Matlab code:
4 个评论
Mathieu NOE
2021-1-20
hello
you should share your code , but I already can tell where the issues are :
- line 8 : the if statement is not correct , it's not about x , it's about checking that i = 0 or n (start and final integration steps)
- line 9 : should be : sum =sum+f(x)
- line 11 : should be : sum =sum+2*f(x)
- line 13 : to be removed
still what you have to implement in a subfunction to evaluate f(x) from the current x value (from line 7)
Rooter Boy
2021-1-21
Bjorn Gustavsson
2021-1-21
If you have just started using matlab it is typically a good idea to look at the matlab onramp videos, demos and presentations etc. That way you will get up to speed on everything matlab-related faster, and then you can proceed faster with the programming-tasks and it will be clearer what part of your problems are matlab-related and what parts are related to algorithms or numerical issues.
Also welcome to matlab-central!
Mathieu NOE
2021-1-21
let me see that you have started to work out your code and i'll be happy to give you a hand ...
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