How to generate one square pulse?

How to generate one square pulse like this one in the picture, where I need to save the pulse in an array

Answer 1

[Star Strider]

Try this:

sqpuls = @(t,t1,t2) (t>= t1) & (t <= t2);

t = linspace(-1, 1);

figure
plot(t, sqpuls(t, -0.5, 0.5), '-r')
grid
ylim(ylim*1.1)

Experiment to get the result you want.