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scipy > Bessel functions > scipy.special.jv | scipy.special.yv | AMOSパッケージ

Last updated at Posted at 2018-03-11
動作環境
GeForce GTX 1070 (8GB)
ASRock Z170M Pro4S [Intel Z170chipset]
Ubuntu 16.04 LTS desktop amd64
TensorFlow v1.2.1
cuDNN v5.1 for Linux
CUDA v8.0
Python 3.5.2
IPython 6.0.0 -- An enhanced Interactive Python.
gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
GNU bash, version 4.3.48(1)-release (x86_64-pc-linux-gnu)
scipy v0.19.1
geopandas v0.3.0
MATLAB R2017b (Home Edition)
ADDA v.1.3b6
gnustep-gui-runtime v0.24.0-3.1

https://github.com/bsumlin/PyMieScatt/blob/master/PyMieScatt/Mie.py
において以下の記載がある。

from scipy.special import jv, yv

jv, yvとは何か?

https://docs.scipy.org/doc/scipy/reference/generated/scipy.special.jv.html
https://docs.scipy.org/doc/scipy/reference/generated/scipy.special.yv.html

第1種Bessel関数と第2種Bessel関数のようだ。

For positive v values, the computation is carried out using the AMOS [R511] zbesj routine,

AMOSというのはnetlib.orgで公開されているFortranパッケージのようだ。
http://netlib.org/amos/

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