ccx
An open source finite element package
CalculiX is a package designed to solve field problems. The method used is the finite element method. So far only structural problems can be solved but it is planned to extend the capabilities.
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openSUSE Tumbleweed
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openSUSE Backports for SLE 15 SP4
SUSE SLE-15-SP2
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The following distributions are not officially supported. Use these packages at your own risk.