Plot an equation (sigma operator)
2 次查看(过去 30 天)
显示 更早的评论
Hi everyone,
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1053365/image.png)
I would like to plot this equation for x=[-2,2] and x=3, I wrote this code but it ain't working. Could you please tell me how can I make it work ? Thanks in advance.
clc
clear
close all
H=0
for x=-2:0.1:2;
n=3;
for k=0:floor(n/2);
H=H+((-1)^k)*factorial(n)*(x^(n-2*k))/(2^k*factorial(k)*factorial(n-2*k));
end
end
x=-2:0.1:2;
plot(x,H,'r')
0 个评论
采纳的回答
Star Strider
2022-7-2
Try soemthing like this —
n=3;
kv=0:floor(n/2);
xv=-2:0.1:2;
H = zeros(size(xv));
Hv = zeros(size(xv));
for k2 = 1:numel(xv)
x = xv(k2);
for k1 = 1:numel(kv)
Hv(k1) = ((-1)^kv(k1))*factorial(n)*(x^(n-2*kv(k1)))/(2^kv(k1)*factorial(kv(k1))*factorial(n-2*kv(k1)));
end
H(k2) = sum(Hv);
end
x=-2:0.1:2;
plot(x,H,'r')
The ‘H’ variable was being saved as a scalar, not a vector.
.
0 个评论
更多回答(1 个)
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!