How to plot and subplot butterfly?
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How to plot and subplot butterfly?
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KALYAN ACHARJYA
2019-9-26
编辑:KALYAN ACHARJYA
2019-9-26
%Problem 1
n = 5000 ;
t = linspace(0,20*pi,n);
x = sin(t).*(exp(cos(t))-2*cos(4*t)+sin(t/12).^5)
y = cos(t).*(exp(cos(t))-2*cos(4*t)+sin(t/12).^5)
subplot(131);plot(t,x,'k');
hold on;
plot(t,y,'r-.');
title('x and y vs. t')
xlabel('t')
ylabel('x and y')
legend('x vs. t','y vs. t');
hold off;
subplot(132),plot(x,y,'r');
title('y vs. x')
xlabel('x')
ylabel('y')
%Problem 2
n = pi/32;
theta = 0:n:8*pi;
rho = (exp(sin(theta))-2*cos(4*theta)-(sin((20-pi)/24).^5))
subplot(133),polar(theta,rho,'--r')
title('Butterfly Curve')
xlabel('Theta (\theta)')
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