GeoKalk is a calculator for vectors (lines, planes and drillholes), and tensors (strain and stress). Multiple calculators can be opened, edited and saved. Entries and results are presented in tables, as well as in a stereonet and a Mohr circle. In addition in 3D stress, the stereonet and Mohr circle can be colored by slip tendency. Entries can be read from text files or copy-pasted. Results can be exported as text and plots. GeoKalk is a powerful tool to perform operations on thousands of vectors or tensors. It is also a great tool to learn about and teach the stereonet and the Mohr circle for strain and stress.
