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  • License: Freeware
  • Last update: 6 years ago
  • Total downloads: 131
  • Price: Free |
  • Operating system: Linux, Mac OS X, Win All, BSD, Solaris
  • Publisher: Howard Wilson (7 other programs)
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scripts default iconCurvilinear Coordinates (Scripts) Publisher's description

Programs and utility functions using the Symbolic Math Toolbox are provided to analyze vectors and tensors in general curvilinear coordinates.

Programs and utility functions using the Symbolic Math Toolbox are provided to analyze vectors and tensors in general curvilinear coordinates. The programs perform the following functions:
1) runcoord plots intersecting coordinate surfaces for typical
coordinate systems
2) runmetric computes and prints metric tensor properties a
general curvilinear coordinate system
3) rundivcrl verifies agreement of numerical values of divergence and
curl of an arbitrary vector computed in both cartesian and curvilinear
4) runconic plots surfaces illustrating how intersections of a cone and
a plane produce conic section curves.
5) Testmetric computes properties for nine different coordinate systems
and places the output in runmetric.tst. The symbolic equations from
some of the examples are fairly complicated.

The programs employ a number of other functions to define several coordinate systems (such as cylindrical, spherical, toroidal, conical,
parabolic, ellipsoidal, and oblate spheroidal) and to compute basevectors, metric tensors, Christoffel symbols, covariant derivatives,divergence, and curl.

Files readme.m and equations.m describe the workspace contents and governing equations. These files consist completely of comments and can be examined with either the help or the edit commands. A pdf.file named TensorNotes presents derivations of the classical analytical formulas used.

System Requirements:

These programs should run with Student MATLAB or Professional MATLAB and the Symbolic Toolbox. The software was developed on a computer having 4Gbyte of RAM. Users should remember that symbolic output in some instances can be quite lengthy.
Program Release Status: Major Update
Program Install Support: Install and Uninstall

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