how to write a code to get these figures ??

[Rena Berman]

(Answers Dev) Restored edit

[John D'Errico]

Stop deleting your question. If you don't want it on Answers, then you should never post in the first place. Deleting the question is an insult to the person who bothered to answer your question.

[Stephen23]

Original question by mike John recovered from Google Cache:

"how to write a code to get these figures ??"

[Rena Berman]

(Answers Dev) Restored edit

Answer 1

[KSSV]

Read about plot, subplot, sin

th = linspace(0,2*pi) ; 
x1 = sin(th) ; 
x2 = cos(th) ; 
figure(1)
plot(th,x1)
figure(2)
plot(th,x1,'r') ;
hold on
plot(th,x2,'b') ;
figure(3)
subplot(121)
plot(th,x1)
subplot(122)
plot(th,x2)

Answer 2

[BALAJI KARTHEEK]

this code will help you out, but i am not sure about the graph of fourth figure but x/y yields to tan graph that is what i am getting since x is sin function and y is cos function

clc
clear all
close all
a1=2;
a2=0.5;
t=0:0.01:1;
T=0.33;
y1=a1*sin(2*pi*t/T);
y2=a2*cos(2*pi*t/T);
figure
plot(t,y1)
hold on
plot(t,y2,'o')
grid on
ylabel('Time')
xlabel('Volts')
title('Your Name')
figure
subplot(2,2,1)
plot(t,3*y1)
title('3*x')
subplot(2,2,2)
plot(t,3*y2)
title('3*y')
subplot(2,2,3)
plot(t,y2.*y1)
title('x*y')
subplot(2,2,4)
plot(t,y1./y2)
title('x/y')