t=0:0.001:10;
%sine wave
sinewave=2*sin(1500*t);
%square wave Vptp=5v DC=2.5V
squarewave1=2.5+2.5*square(12000*t);
%triangle wave
trianglewave=0.25+0.25*sawtooth(5000*t);
%square wave f=80kHz
squarewave2=2.5+2.5*square(80000*t);
%sawtooth wave
sawtoothwave=-3+2.5*sawtooth(10000*t);
plot(t,sinewave)
%same plot command can be applied for any of them, get closer in figures to
%see the waves since their frequencies are high
If you want to see from a broader perspective, increase the increment of t, like 0.1.
