Help with the integral function

1 次查看（过去 30 天）
Hannah Evans
Hannah Evans 2021-2-18
评论： Star Strider 2021-2-18
I am trying to use the integral fucntion to solve this problem:
This is my code:
and I keep getting this error:
Error using integral (line 82)
First input argument must be a function
handle.
Any help would be great, Thanks!

请先登录，再回答此问题。

回答（1 个）

Star Strider
Star Strider 2021-2-18
It appears that what you want to integrate could be vectors, not functions. If so, use the trapz (or cumtrapz) function to do a trapezoidal integration.
  2 个评论
Hannah Evans
Hannah Evans 2021-2-18
i got this error when using that:
Error using permute
ORDER contains an invalid permutation index.
Error in trapz (line 40)
y = permute(y,perm);
Error in Lab3 (line 103)
Z104(i) = (1./g)*trapz(del104, p_ref104,
p104);
Star Strider
Star Strider 2021-2-18
You will need to supply more than an image of your code if you want help to solve this.
First, my version of MATLAB will not run images of code, only actual code, and second, I need to know what the data are that you’re working with, such as what ‘Sva104’ and the others are.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Numerical Integration and Differentiation 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by