function label541

figure(1)
x=1:0.1*pi:2*pi;
y=sin(x);
plot(x,y)
xlabel('x(0-2\pi)','fontweight','bold');
ylabel('y=sin(x)','fontweight','bold');
title('正弦函數','fontsize',12,'fontweight','bold','fontname','隸書')

figure(2)
x=1:0.1*pi:2*pi;
y=sin(x);
plot(x,y)
xlabel('x(0-2\pi)','fontweight','bold');
ylabel('y=sin(x)','fontweight','bold');
title('正弦函數','fontsize',12,'fontweight','bold','fontname','隸書')
text(3*pi/4,sin(3*pi/4),'\leftarrowsin(t) = .707','FontSize',16)
text(pi,sin(pi),'\leftarrowsin(t) = 0','FontSize',16)
text(5*pi/4,sin(5*pi/4),'sin(t) = -.707\rightarrow','HorizontalAlignment','right','FontSize',16)

figure(3)
X=1:0.1*pi:2*pi;
Y=sin(X);
plot(X,Y)
gtext('y=sin(x) ', 'fontsize',12)

figure(4)
Z = peaks;
h = plot(Z(:,33));
x = get(h,'XData'); % Get the plotted data
y = get(h,'YData');
imin = find(min(y) == y);% Find the index of the min and max
imax = find(max(y) == y);
text(x(imin),y(imin),['Minimum=',num2str(y(imin))],'VerticalAlignment','middle','HorizontalAlignment','left','FontSize',14)
text(x(imax),y(imax),['Maximum=',num2str(y(imax))],'VerticalAlignment','bottom','HorizontalAlignment','right','FontSize',14)
str1(1) = {'Center each line in the Uicontrol'};
str1(2) = {'Also check out the textwrap function'};
str2(1) = {'Each cell is a quoted string'};
str2(2) = {'You can specify how the string is aligned'};
str2(3) = {'You can use LaTeX symbols like \pi \chi \Xi'};
str2(4) = {'\bfOr use bold \rm\itor italic font\rm'};
str2(5) = {'\fontname{courier}Or even change fonts'};
uicontrol('Style','text','Position',[80 80 200 30],'String',str1);
text(45,0,str2,'HorizontalAlignment','right')