Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.


chris lanz
Posts:
1
From:
Potsdam, NY
Registered:
8/17/09


nonrectilinear  or nonorthogonal  coordinate systems
Posted:
Aug 17, 2009 11:37 PM


Concerning the history of the "invention" of rectilinear Cartesian coordinates, Philip E.B. Jourdain writes, in his book "The Nature of Mathematics", that "Sometimes the axes are not chosen at right angles to one another, but it is nearly always far simpler to do so. . ."
Can anyone point me in the direction of applications in which the axes chosen are not at right angles, or perhaps lack orthogonality or rectilinearity? I am struggling with such an application, in which I have no way around the necessity of at least beginning with such nonstandard axis definitions.
I have worked out a good deal of the arithmetic I need to handle my problem, but I sure would like to read what other people have done.
If you reply, please also send it to my email address, lest I miss you:
lanzcc@potsdam.edu
THANKS
Dr. Chris Lanz



