close all
x=0:pi/50:2*pi; % poznamka
% poznamka
y=sin(x);
plot(x,y,'r')
title('Graf funkce')
xlabel('Osa x')
ylabel('Osa y')
grid
text(6,-0.4,'Sin(x)')
%input('Dej Enter, zadej mysi pozici v grafu')
%disp('Zadej mysi pozici v grafu')
%msgbox('Zadej mysi pozici v grafu')
%gtext('Sinus') % sdsdsds
x1=0:pi/50:4*pi;
y1=cos(x1);
axis(axis)
hold on
plot(x1,y1)
legend('Sin(x)','Cos(x)')
hold off

figure
subplot(2,1,1)
plot(x,y)
title('Sin x')
xlabel('Osa x')
subplot(2,1,2)
plot(x1,y1)
title('Cos x')

figure
x2=0.01:0.01:10;
y2=log(x2);
subplot(2,2,1)
plot(x2,y2)
title('Plot')
subplot(2,2,2)
semilogx(x2,y2)
title('Semilogx')
subplot(2,2,3)
semilogy(x2,y2)
title('Semilogy')
subplot(2,2,4)
loglog(x2,y2)
title('Loglog')

figure
z=x.^2;
subplot(2,1,1)
plot(x,y,x,z)
title('Graf funkce sin(x) a x^2')
subplot(2,1,2)
plotyy(x,y,x,z)
title('Graf funkce sin(x) a x^2, dve osy Y')

%3-D grafika
figure
x=[0 5];
y=[1 6];
z=[2 4];
plot3(x,y,z)
grid

figure
plot3(sin(x1),cos(x1),x1)
grid