Ei related - Maple Help

convert/Ei_related

convert special functions into Ei related functions

 Calling Sequence convert(expr, Ei_related)

Parameters

 expr - Maple expression, equation, or a set or list of them

Description

 • convert/Ei_related converts, when possible, special functions into Ei related functions. The Ei related functions are
 $\left[{\mathrm{Chi}}{,}{\mathrm{Ci}}{,}{\mathrm{Ei}}{,}{\mathrm{Li}}{,}{\mathrm{Shi}}{,}{\mathrm{Si}}{,}{\mathrm{Ssi}}\right]$ (1)
 > $\mathrm{KummerU}\left(1,1,x\right)-\mathrm{WhittakerW}\left(-1,-\frac{1}{2},-{x}^{2}\right)\mathrm{exp}\left(\frac{1}{2}{x}^{2}\right)$
 ${\mathrm{KummerU}}{}\left({1}{,}{1}{,}{x}\right){-}{\mathrm{WhittakerW}}{}\left({-1}{,}{-}\frac{{1}}{{2}}{,}{-}{{x}}^{{2}}\right){}{{ⅇ}}^{\frac{{{x}}^{{2}}}{{2}}}$ (2)
 > $\mathrm{convert}\left(,\mathrm{Ei_related}\right)$
 ${{\mathrm{Ei}}}_{{1}}{}\left({x}\right){}{{ⅇ}}^{{x}}{-}{{\mathrm{Ei}}}_{{2}}{}\left({-}{{x}}^{{2}}\right)$ (3)