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| t=1:.0001:3*pi; | |
| x=(1+cos(t)).*sin(t); | |
| y=-1.9.*(1+cos(t)).*cos(t); | |
| plot(x,y); | |
| axis([-1.5 1.5 -4 .7]); | |
| title('Cardioid'); | |
| ylabel('y=-1.9.*(1+cos(t)).*cos(t)'); | |
| xlabel('x=(1+cos(t)).*sin(t)'); |
