sin_cosine_animation.m

%animation of sin and cosine
clc
clear all
n = input('Enter number of sine and cosine cycles: ');
y = input('Enter number of hits: ');
choice = input('Trace locus yes or No: ','s');
choice = lower(choice);
x = n*360;
h = 1;
clc
switch choice
    case 'yes'
        k = 0:x;
        figure('menubar','no','color','k','numbertitle','off','resize','off','name','TRACE SIN AND COS')
        plot(k,sind(k),k,cosd(k),'linewidth',2)
        h1 = line(k,sind(k),'marker','o','markersize',14,'markerfacecolor','w');
        h2 = line(k,cosd(k),'marker','o','markersize',14,'markerfacecolor','y');
        while h <= y
            for k = 0:x
                set(h1,'xdata',k,'ydata',sind(k))
                set(h2,'xdata',k,'ydata',cosd(k))
                axis([0 x -1 1])
                axis square off
                drawnow
            end
            for k = x:-1:0
                set(h1,'xdata',k,'ydata',sind(k))
                set(h2,'xdata',k,'ydata',cosd(k))
                axis([0 x -1 1])
                axis square off
                drawnow
            end
            h = h+1;
        end
    case 'no'
        figure('menubar','no','color','k','numbertitle','off','resize','off','name','SIN AND COS')
        while h <= y
            for k = 0:x
                plot(k,sind(k),'o','markersize',14,'markerfacecolor','w')
                hold on
                plot(k,cosd(k),'o','markersize',14,'markerfacecolor','y');
                hold off
                axis([0 x -1 1])
                axis square off
                drawnow
            end
            for k = x:-1:0
                plot(k,sind(k),'o','markersize',14,'markerfacecolor','w')
                hold on
                plot(k,cosd(k),'o','markersize',14,'markerfacecolor','y');
                hold off
                axis([0 x -1 1])
                axis square off
                drawnow
            end
            h = h+1;
        end
    otherwise
        disp('INVALID SELECTION SELECT EITHER YES OR NO')
        return
end
clear all