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Heun_functions

Matlab/Octave code for evaluation of the Heun functions

The basic functions to use:

HeunL0: local Heun function, equal to 1 at z=0

HeunLmv: multi-valued function, integration along an arbitrary path connecting 0 and z

HeunS0: second local solution at z=0

HeunSmv: multi-valued function, integration along an arbitrary path connecting 0 and z

HeunL, HeunS: with improvement near singularities z=1, a, infinity

HeunOpts: tuning of internal parameters

Auxiliary functions: HeunGfromZ0 HeunLS HeunG_near_1 HeunG_near_a HeunG_near_infty HeunL00 HeunL00log HeunS0gamma1 HeunS00gamma1 HeunSmvgamma1

tested in the Octave numerical environment, intended to be Matlab compatible

Ref.: http://arxiv.org/abs/1506.03848

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Matlab/Octave code for evaluation of the Heun functions

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