More special function confusion/annoyance

[deSitter]

The Si(z) function (integral sine) doesn't take complex argument, but the Ci(z) and Ei(z) functions do.

Sigh.

Workarounds. So annoying. It's not as if function theory was invented yesterday. Why has no one put up a sane library of special functions? And they should all take complex arguments when that makes mathematical sense. Who writes this stuff? Do they need my help? Not kidding, I'm retired and ready for it.

-drl