[Info-vax] VMS process communication

[Steven Schweda]

> Am I confused? [...]

   Perhaps.

> [...] I was under the impression that pi comes from the
> division of the diameter with the circumference of a circle.
> No logarithmic or trigonometric anywhere near that... 

      arccos( -1) = ?

   Trying to disconnect trig functions from circles and pi seems (to me)
perverse and unproductive.  Or does your Web search for:
      trigonometry "unit circle"
find nothing?