% x1
A = ;
f0 = ;
N = ; % nombre delements de la DSF
fe = 50*N*f0;
Tps = [0 :1/fe: 1-1/fe];
a0 = 1/2;
an = (2/(n*n*pi*pi))(-cos(n*pi) + 1)
x = a0 * ones(1,length(Tps)); % a0 est a remplacer par la valeur calculee
for n = 1:N
    x = x + a0 + an*cos(n*2*pi*f0*Tps);
end
figure
plot(Tps,x);
xlabel = "t"
ylabel = "x(t)"
Title = ""

% freqentielle
X=fft(x);
Frq = [];
figure
plot(Frq,abs(X));
xlabel = "";
ylabel = "";
Title = "";

% x2
A = ;
r = ;
f0 = ;
N = ; % nombre delements de la DSF
fe = 50*N*f0;
Tps = [0 :1/fe: 1-1/fe];
a0 = r;
an = 2* (sin(n*pi*r))/(n*pi);
x = a0 * ones(1,length(Tps)); % a0 est a remplacer par la valeur calculee
for n = 1:N
    x = x + a0 + an*cos(n*2*pi*f0*Tps)+;
end
figure
plot(Tps,x);
xlabel = "t"
ylabel = "x(t)"
Title = ""

% freqentielle
X=fft(x);
Frq = [];
figure
plot(Frq,abs(X));
xlabel = "";
ylabel = "";
Title = "";