Implement a square wave in matlab

hello friends,i need help and i havent any idea what i have to do thats why someone can help me

Answer 1

[Explorer]

The square wave with amplitude 1, fundamental frequency 10 pi radian per second (5 Hz) and phase of 5 pi can be generated by using the following commands:

A=1;
fo=10*pi;
w=5*pi;
t=0:0.001:1;   
sq=A*square(fo*t + w);
plot (t, sq)
axis ([0  1  -2  2])