Summary: EXAMPLE FROM CLASS
WITH A FEW MORE DETAILS
MATH 2573H, FALL 2011
UNIVERSITY OF MINNESOTA
GREG W. ANDERSON
Let be the circle with center (x0, y0) and radius r0, oriented counterclockwise.
Let
f(x, y) =
1
2
log(x2
+ y2
).
We wish to evaluate
(1)

f
n
ds.
To stay out of trouble we assume that the origin (where f(x, y) is not defined) is