I want to plot a piecewise periodic function

The fundmental period and i can't really make it periodic

t1=linspace(-2,0);
func1=t1+2;
t2=linspace(0,1);
func2=-2.*t2+2;
X=[func1 func2];
t=[t1 t2];
plot(t,X)

Answer 1

[Walter Roberson]

You are defining the concatenation of two individual periodic functions, which gets you two y for each x.

t1 = @(t) mod(t,2)-2;
func1 = @(t) t1(t)+2;
t2 = @(t) mod(t,1);
func2 = @(t) -2.*t2(t) + 2;
X = @(t) [func1(t); func2(t)];
T = linspace(-5, 5);
plot(T, X(T))

You should consider using logical masks, such as

(mod(t,3) < 2) .* t1(mod(t,3)-2) + (mod(t,3) >= 2) .* t2(mod(t,3)-2)

[Mohammed Ayman]

can i add them together into one signal?

[Walter Roberson]

Yes -- but should you?

Or is the idea that you want something of period 3 with the first 2/3 of it being controlled by t1, and the last third controlled by t2 ?

t1 = @(t) mod(t,2)-2;
func1 = @(t) t1(t)+2;
t2 = @(t) mod(t,1);
func2 = @(t) -2.*t2(t) + 2;
X = @(t) func1(t) + func2(t);
T = linspace(-5, 5);
plot(T, X(T))

[Mohammed Ayman]

yes that's exactly what i wanted to do thank you very much