Log in

View Full Version : An Integral (Complex)


amir parsa
Jan 20, 2005, 07:57 AM
Dear Friends!
I can't find any solution 4 this Integral. I know the correct Answer, but don't know why. Could u please help me out??
Regards
Amir
P.s : The Question is attached to this mail

fizixx
Mar 14, 2005, 11:03 AM
Hello Amir...

What is the c:|z| = 1/2 about?

Glipto
Mar 15, 2005, 06:35 PM
C: |z| = 1/2 is a circle with center (0,0) and radius 1/2

Maybe if we use...

If F holo, C: |z| = r and |a| < r then

F(a) = 1 / (2*pi*j) * INT[ F(z) / (z - a) dz] (Cauchy formula)

(So many years since I seen Complex analysis)