Help needed with matlab code. Sawtooth wave.

Here is a code, which calculates square wave frequency and phase spectrum. What I should change to make it plot sawtooth wave?

clc, clear

t=-3:1e-3:3;
tau=1;
T=2*tau;
U=1;
N=10;
K=0:N

k0=0
Sk1=(2*U)*(sin(K*pi/T))./(K*pi)
Sk1(1)=0.5
figure(1)
subplot(211)
stem(K, abs(Sk1))
subplot(212)
stem(K, phase(Sk1))

S=Sk1(1)
for K=1:N
S = S + abs(Sk1(K+1))*cos(K*pi*t+phase(Sk1(K+1))…
end

figure(2)
plot(t,S), grid

[Jan]

Please format your code as explained in the "Markup help" link on this page. I've done this for you this time.

[Daniel Shub]

What is the difference, in amplitude and phase, between a square wave and a sawtooth wave? Where are the phase and amplitude set in your code?