hello how do I write this function without getting an error saying "variable K has an incorrect value".

1 次查看（过去 30 天）
Reza Ghasemi
Reza Ghasemi 2020-5-27
评论： Reza Ghasemi 2020-5-28
my code is: And so far only the (K) is wrong.
N = 1000;
a= 0;
b= pi;
h = (b-a)/N;
x=a:h:b;
f = x.^2.*sin(x);
F = sum(f*h );
a= 1;
b= 2;
h = (b-a)/N;
x=a:h:b;
g =(x.^3.2 + 2.*x.^2.22 +x + 21) ;
G = sum(g*h) ;
a=-3 ;
b= 3;
h = (b-a)/N;
x=a:h:b;
k =abs(x).*exp(-x).^2 ;
K = sum(k*h);

请先登录，再回答此问题。

回答（2 个）

KSSV
KSSV 2020-5-27
a=-3 ;
b= 3;
h = (b-a)/N;
x=a:h:b;
k =abs(x).*exp(-x.^2) ;
K = sum(k*h);
  10 个评论
显示 8更早的评论

请先登录，再进行评论。

Image Analyst
Image Analyst 2020-5-27
What is "the above technique"?
Try using trapz() instead of sum.
  7 个评论
显示 5更早的评论

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