plotting Sum function , with floor term and rectangular pulse

semicolon

2020 4 21

1 个回答

回答已采纳

3 次查看（30 天）

0 个投票

Hey,

Is there a way to plot this function in Matlab?

y(t) =

while

is the function :

, and u is the Heaviside function.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Follow Question

采纳的回答

Ameer Hamza 2020-4-21

编辑：Ameer Hamza 2020-4-21

在 MATLAB Online 中打开

1 个投票

try this

syms t n
chi = heaviside(t-n) - heaviside(t-2-n);
term = (-1)^n*floor((n+2)/2).*chi;
y = symsum(term, n, 0, inf);
t_vec = linspace(0, 10, 100);
y_vec = vpa(subs(y, t, t_vec));
plot(t_vec, y_vec, '-o')

A faster alternative:

chi = @(t, n) heaviside(t-n) - heaviside(t-2-n);
term = @(t, n) (-1).^n.*floor((n+2)/2).*chi(t,n);
y = @(t) sum(term(t, 0:ceil(t+1)));
t_vec = linspace(0, 10, 100);
y_vec = zeros(size(t_vec));
for i=1:numel(t_vec)
     y_vec(i) = y(t_vec(i));
end
plot(t_vec, y_vec, '-o')