convert/Ei_related - Maple Programming Help

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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)
 > $\mathrm{KummerU}\left(1,1,x\right)-\mathrm{WhittakerW}\left(-1,-\frac{1}{2},-{x}^{2}\right){ⅇ}^{\frac{1{x}^{2}}{2}}$
 ${\mathrm{KummerU}}{}\left({1}{,}{1}{,}{x}\right){-}{\mathrm{WhittakerW}}{}\left({-}{1}{,}{-}\frac{{1}}{{2}}{,}{-}{{x}}^{{2}}\right){}{{ⅇ}}^{\frac{{1}}{{2}}{}{{x}}^{{2}}}$ (2)
 > $\mathrm{convert}\left(,\mathrm{Ei_related}\right)$
 ${\mathrm{Ei}}{}\left({1}{,}{x}\right){}{{ⅇ}}^{{x}}{-}{\mathrm{Ei}}{}\left({2}{,}{-}{{x}}^{{2}}\right)$ (3)