Welcome you to this lecture on marine hydrodynamics. In last few lectures we have spent time on various types of computer mapping. In fact, the last one being very important where we have talked about the application of Joukowsky transformation to ellipse from circle to using the Joukowsky transformation, we have used map circle to ellipse then we have mapped from circle to gambard aerofoil, symmetric aerofoil and half clue arac. Today, in fact yesterday also I have introduced, I have just meant introduction I have told that today I will emphasis on a new type of transformation, again a kind of confirming mapping that is the Schwarz Christoffel transformation. And this Schwarz Christoffel transformation helps us in the mapping a polygon particularly simply closed polygon to when the jet plane to a line on the zeta plane. So, only before going to the details of this Schwarz Christoffel transformation, let us talk a little about to what I mean a simple closed polygon and some of the characteristics. Although I have repeated it yesterday, let me repeat it again.
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