matlab心形代码

% matlab动态心形（保存GIF格式）
clc;clear all;
a=10;
x=-2:0.01:2;
figure(1);
set(gcf,'position',[0,0,800,600],'color','w');
for i=1:100
str_title = strcat('color{red}a=',num2str(a));
y = abs(x).^(2/3)+(0.9*sqrt((3.3-x.^2))).*sin(a*pi*x);
a=i/10;
figure(i);
set(gcf,'position',[0,0,800,600],'color','w');
p1 = plot(x,y,'r','LineWidth',3);
hold on;
title('color{red}f(x)=x^2^/^3+e/3*(π-x^2)^1^/^2*sin(a*π*x)','fontsize',15);
text(-0.2,2.3,str_title,'FontName','Times New Roman','FontSize',20);
xlim([-2 2]);
ylim([-1.5 2.5]);
frame = getframe(gcf);
im = frame2im(frame);
[I,map] = rgb2ind(im,256);
if i==1
imwrite(I,map,'心形图.gif','gif','Loopcount',Inf,'DelayTime',0.05);
else
imwrite(I,map,'心形图.gif','gif','WriteMode','append','DelayTime',0.05);
end
close(figure(i));
end

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