Kadath is a library that implements spectral methods in the context of theoretical physics.
The library is fully parallel but a sequential version can be installed (should be rather slow for real problems).
The library is written in C++.
Kadath is a free software under the : GNU General Public License

A detailed presentation of the tool can be found in : J. Comput. Phys., 229, 3334 (2010)

The name of the library is a reference to HP Lovecraft's mythical dwelling place of the Great Ones.
" There were towers on that titan mountaintop; horrible domed towers in noxious and incalculable tiers and clusters beyond any dreamable workmanship of man; battlements and terraces of wonder and menace, all limned tiny and black and distant against the starry pshent that glowed malevolently at the uppermost rim of sight. Capping that most measureless of mountains was a castle beyond all mortal thought, and in it glowed the daemon-light. "

The dream-quest of unknown Kadath by HP Lovecraft

First Chebyshev polynomials