[Maxima] Cosine Integral and Sine Integral?

[Robert Dodier]

Tim Lahey wrote:

> I mentioned this before in the context of the Sine Integral, Si(x),
> but it appears that neither Sage nor Maxima have support for the
> Sine Integral, Si(x) or the Cosine Integral, Ci(x).

Dieter, are the Si and Ci functions on your radar?

Context -- Dieter has been doing a tremendous amount of work on
integration and special functions in Maxima.

best

Robert Dodier