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Authors: Andreas Brand and Thomas Wolf

The package CRACK attempts to solve an overdetermined system of ordinary or partial differential equations (ODEs/PDEs) with at most polynomial non-linearities in the unknown functions and their derivatives.

It can be run in automatic batch mode or interactively. Applications of CRACK include a program CONLAW for the computation of conservation laws of DEs, a program LIEPDE for the computation of infinitesimal symmetries of DEs and a program APPLYSYM for the computation of symmetry and similarity variables from infinitesimal symmetries.