2d
In this 2D animation i used this equation
animate(2*sin(x+y)+3*cos(x-y),x=-1..8,y=0..8,color=magenta,thickness=5,frames=20);




3d In this 3D animation i used this equation
animate3d(sin(s*t)*2*sin(t^2)+cos(4*s*t*phi),s=0..2*Pi,t=0..2*Pi,phi=0..4*Pi,style=patch, frames=20, coords=spherical, title="dandelion");

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