I tried letting all the variables equal to a random constant and managed to get ##'XX'## to equal 0. It seems that I get a non-zero value of ##'XX'## whenever I let any of ##t, r, \phi## remain a variable and not a constant, which leads me to believe that my substitution and hence my...
Homework Statement
I'm trying to get to grips with Godel's 1949 Paper on Closed Time-like Curves (CTCs). Currently I'm trying to confirm his transformation to cylindrical coordinates using maple but seem to keep getting the wrong answer.
Homework Equations
The line element in cartesian...