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I think, at 29:14 psi is a function of r and theta also ..there is sin( theta) term also included in psi expression..but when psi=0 , it is one of the case i.e circle
Good
I think, at 29:14 psi is a function of r and theta also ..there is sin( theta) term also included in psi expression..but when psi=0 , it is one of the case i.e circle
Good