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Discussion of Problem 1030. Titanic

What means Northern/Southern longitude???
Posted by Vlad Veselov 9 Sep 2003 22:22
I think that longitude can be only Western or Eastern. Am I wrong?
Re: What means Northern/Southern longitude???
Posted by Vlad Veselov 10 Apr 2004 16:09
Hey, judges, can you check the description or you are too lazy?
Fixed.
Posted by Vladimir Yakovlev (USU) 10 Apr 2004 19:51
Re: What means Northern/Southern longitude???
Posted by sloboz 13 Apr 2004 05:42
if it's northern longitude then the point is over the Ecuator (Z axis is positive); if it's southern it's below Ecuator. There are only 90 degrees because over 90 degrees you change the latitude.
kinda difficult to understand this problem, but easy formulas after...