Physical constants

[Tommy Grav]

I have some code for doing orbital computations. The code is kind of
extensive with many classes, each having several functions. In these
functions I need to use constants (like the gravitational constant).
What is the best way of implementing a solution when constants are
used in several different classes and functions? I do not want to
pass the constant down through the functions. I have thought of
making a class of constants but I do not want to invoke an
instant in each function. How is the pi and e constants in math
coded?

Tommy
tgrav at mac.com
http://homepage.mac.com/tgrav/

"Any intelligent fool can make things bigger,
more complex, and more violent. It takes a
touch of genious -- and a lot of courage --
to move in the opposite direction"
                          -- Albert Einstein


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