/pade-py

Python library calculating Pade approximants based on Chebyshev polynomials

Primary LanguagePython

Pade-py

Python library for calculating Pade approximants based on Chebyshev Polynomials. Based on the algorithms described in Ref.:

Fast and Stable Interpolation In Roots of Unity and Chebyshev Points Ricardo Pachon, Pedro Gonnet, And Joris Van Deun, SIAM J. NUMER. ANAL. Vol. 50, No. 3, pp. 1713-1734

and the recursive pade approximation algorithm described in:

Vidberg, H. J. and Serene, J. W. Solving the Eliashberg equations by means of N-point Padé approximants, Journal of Low Temperature Physics Vol. 29, pp. 179-192

Using

To run

python cheb_pade.py

or

python pade.py

to see example approximations to a trial function.