How to plot a function with summation and multiple variables?

I would like to plot this function. I started writing the code but there are a lot of errors. Any help please!

n=10;

a = 1; %period

t = 0:0.1:1;%time

s=0.1;%area

t0=0.03;%impulse

ti=0.01;%random fluctuation around the average period

for i=1:n

eq(t)=a(i).*s.*(t-i.*t0-ti);

end

eq=sum(eq)

Answer 1

[Ive J]

Start by understanding MATLAB a bit better. For the time being this may help you:

myfnc = @(A, s, t, i, T0, tau) sum(A.*s.*(t - i.*T0 - tau)); % based on the attached fig, both A and tau should be vectors

n = 10; 
A = rand(1, n);
tau = rand(1, n);
s = 0.1;
t = linspace(0, 1, n); % doesn't seem to be a vector in your fig (?)
T0 = 0.03;

myfnc(A, s, t, 1:n, T0, tau)

ans = -0.0849

[Anne Louise Barão]

Hi! Thank you for your answer. A is a time-varying function. Tau is the smallest random fluctuation around the average period. I believe the random function for Tau is correct. t is the time it takes to create this signal so I made a vector. But I can't plot this function.