Issue plotting stem function

I am trying to plot a discrete function Xn using the stem function and also plot a continuous function Xt on the same figure over the same interval.

X=@(t) 3*sin(100*pi*t);

t=linspace(0,0.05);

Xn=3*sin(pi*n/3);

n=linspace(0,0.035); %%This line is trying to match the number of elements in N

N=[0 2.6 2.6 0 -2.6 -2.6 0];

figure(1);

plot(t,X(t));

grid on;

hold on;

stem(N,Xn);

axis([0 0.05 -3 3])

Answer 1

[KSSV]

X=@(t) 3*sin(100*pi*t);
t=linspace(0,0.05);
% 
n=linspace(0,0.035); %%This line is trying to match the number of elements in N
N=[0 2.6 2.6 0 -2.6 -2.6 0];
Xn=3*sin(pi*N/3);
figure(1);
plot(t,X(t));
grid on;
hold on;
stem(N,Xn,'*-r');
axis([0 0.05 -3 3])