Re: Render \*(Pi as pi, not n

["Ulrich Spörlein" <uqs@spoerlein.net>]

On Thu, 02.06.2011 at 12:54:56 +0300, Kristaps Dzonsons wrote:
> On 02/06/2011 12:28, Ulrich Spörlein wrote:
> > Hello,
> >
> > please consider doing the same as groff here, fixing ambiguities
> >
> > Before:
> >
> >       The atan2(), atan2f(), and atan2l() functions, if successful,
> >       return the arc tangent of y/x in the range [-n, +n] radians.
> >
> > After:
> >
> >       The atan2(), atan2f(), and atan2l() functions, if successful,
> >       return the arc tangent of y/x in the range [-pi, +pi] radians.
> >
> > Although 'n' might look a little like 'π' we shouldn't replace random
> > letters for greek symbols that have different meaning.
> >
> > Cheers,
> > Uli
> 
> Ulrich,
> 
> This is not something that groff agrees upon.  The stock groff on 
> GNU/Linux returns `n' instead of `pi'.  Version: GNU troff (groff) 
> version 1.21.  We've discussed this before, I think... the quick 
> solution is to patch it downstream (chars.in).  I personally don't like 
> the attenuation of /any/ Greek characters, as my own formulas end up 
> confusing (those with both pi and n, for example).

I disagree on groff disagreeing

FreeBSD base groff version 1.19.2: \*(Pi -> pi
FreeBSD port groff version 1.21:   \*(Pi -> pi
Ubuntu groff version 1.20.1:       \*(Pi -> pi

Which distribution where you checking?

Uli
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