Recent content by faeriewhisper

Hello! I'm trying to use a subprogram from the Starlink Project - Lucy in the library KAPPA - that is already installed and compiled. The idea is to be able to call it from my fortran routine. Something like this: PROGRAM ex INTEGER i REAL in(10),psf(10),out(10) DO i =1,10 in(i) = rand()...

Hello! One of my assignments for a discipline named planetary systems was to write a program and a paper about the orbit of Eris. One of the tasks was to find the orbit's characteristics with only one arbitrary point of position and velocity. Take a look ;) My best regards, Iris.

Thank you guys, for the replies. So, let me see if i understood. Please look at the picture and tell me if I'm right. http://www.freeimagehosting.net/nsqeh This picture represents the vector field with the corresponding basis vectors, so, for what I've understood, the covariant derivative...

Hi there! I saw this exercise that we have to calculate the covariant derivative of a vector field (in polar coordinates). Most of them equals zero, but two of them are non-zero, sugesting that this vector field is not constant. What i want to understand is the physical meaning of this values...