Igor Lukacevic wrote:
Hullo everyone!

I am new to this newsgroup, and to the subject. I have an exercise to
solve, I'm sure it's a simple one, but I just cannot get it right.

I have to prove that meridians on the surface of Earth are geodesics using
the definition of geodesics:

d^2x^i i dx^j dx^k
-------- + { }*-----*------ = 0
ds^2 j k ds ds

I have succeded at proving that parallels are not, but meridians are
giving me trouble. I have calculated Crist. symbols for i,j,k=1,2.

Please, if anyone could help, I would be most gratefull

I. Lukacevic
If the application is field theory, as opposed to ship navigation, it
might be helpful to look at what we are trying to represent.
http://web.mit.edu/8.02t/www/802TEAL...ttract_100.jpg
From:
http://web.mit.edu/8.02t/www/802TEAL...tics/index.htm
http://vishnu.mth.uct.ac.za/omei/gr/chap6/node8.html

Sue...