Naming of the Exponential Integrals



On 7/24/08, Dieter Kaiser <drdieterkaiser at web.de> wrote:

>  expintegral_e (n z) - Exponential Integral En
>  expintegral_e1 (z)  - Exponential Integral E1
>  expintegral_ei (z)  - Exponential Integral Ei
>  logintegral_li (z)  - Logarithmic Integral Li
>  expintegral_si (z)  - Exponential Integral Si
>  expintegral_ci (z)  - Exponential Integral Ci
>  expintegral_shi (z) - Exponential Integral Shi
>  expintegral_chi (z) - Exponential Integral Chi

I like this naming scheme better.

>  These names should emphasize that all this functions are sumerized as
>  Exponential Integrals. But to be consistent we have to use for Li the name
>  expintegral_li and not logintegral_li. I have chosen expintegral_li in my last
>  revision of the code.

I think I like logintegral_li better, but either way it is OK by me.

best

Robert Dodier