matlab心形曲线代码_matlab心形

clear
x=-2:0.01:2;
y=sqrt(2*sqrt(x.^2)-x.^2);
z=asin(abs(x)-1)-pi./2;plot(x,y);
grid on;
hold on;
plot(x,z);
axis equal;

t=0:0.1:2*pi;
x=16*sin(t).^3;
y=13*cos(t)-5*cos(2*t)-2*cos(3*t)-cos(4*t);
figure;
axis([-10,10,-10,10]);
plot(x,y)

clear
t=0:0.1:2*pi;
x=16*sin(t).^3;
y=13*cos(t)-5*cos(2*t)-2*cos(3*t)-cos(4*t);
figure;
h = plot(x(1),y(1),'r');
axis([-20,20,-20,20]);
axis off
[A,map] = rgb2ind(frame2im(getframe),256);
imwrite(A,map,'love.gif','LoopCount',inf,'DelayTime',0.1);
for idx = 2:length(t)
h.XData(idx) = x(idx);
h.YData(idx) = y(idx);
drawnow
%这两句话是为了在本地保存的图片也能显示出来，保存地址默认
[A,map] = rgb2ind(frame2im(getframe),256);
imwrite(A,map,'love.gif','WriteMode','append','DelayTime',0.1);  
end