Error using ^ when integrating a function

2024 3 7
1 个回答
回答已采纳
更新时间：2024 3 7
5 次查看（30 天）

0 个投票

I am attempting to integrate a function between its bounds.
fun = @(r) (1+erf((-36.38+2.56*log(5+((138.4-r)/4)*((26.964*2.71828^(-0.0238*r))^(4/3)))-5)/sqrt(2))*r);
q = integral(fun,21.2,140)
I get the below error.
Error using ^
Incorrect dimensions for raising a matrix to a power. Check that the matrix is square and the power is a scalar. To operate on each element of the matrix individually, use POWER (.^) for elementwise power.

请先登录，再回答此问题。

 采纳的回答

Walter Roberson
Walter Roberson 2024-3-7

3 个投票

fun = @(r) (1+erf((-36.38+2.56.*log(5+((138.4-r)/4).*((26.964*2.71828.^(-0.0238*r)).^(4/3)))-5)/sqrt(2)).*r);
Use vectorized operations.

更多回答（0 个）

类别

在 帮助中心 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