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See please
http://inforino.mpei.ru/Pages/default.aspx
I am preparing one work for it
Hybrid solution of the problem
or
Journey to the world of mathematics on Tchebyshev’s plantigrade machine
See the site
https://community.ptc.com/t5/PTC-Mathcad-Questions/Chebyshev-Math-Journey/m-p/500239
I need coauthors from our Community - Werner Exinger for example!