CVS info   : $Header$

Cactus Code Thorn CalcK
Thorn Author(s)     : Erik Schnetter <schnetter@aei.mpg.de>
Thorn Maintainer(s) : Erik Schnetter <schnetter@aei.mpg.de>
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Purpose of the thorn:

Calculate the extrinsic curvature K_ij from several time levels of the
three-metric gamma_ij, lapse alpha, and shift beta^i.