let p be any point in 2D, if we look at p as a circle of radius r ( r small enough) then the circumference c = 2*pi*r which implies pi = c/2r . Now take the limit when r , c (both go to zero) and apply L'Hopital rule, we will derive that:
pi = 1/2 :)
Peter Molnár
No. If you apply L'Hospital rule correctly, you will derive only pi = pi.
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Jamal Salah
Thanks peter, the second part is ironic, but yet what geometry can be build by looking to points as circles?
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