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besselk
2009 Nov 20
1
Bessel function with large index value
...g for a method of dealing with the modified Bessel function
K_\nu(x) for large \nu.
The besselK function implementation of this allows for dealing with
large values of x by allowing for exponential scaling, but there is no
facility for dealing with large \nu.
What would work for me would be an lbesselK function in the manner of
lgamma which returned the log of K_\nu(x) for large \nu. Does anybody
have any leads on this?
Note that I have trawled through Abramowitz and Stegun and found 9.7.8
which doesn't work for me because of the complication in the definition
of the x argument. I have a...