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Re: modify coord-rotate to get exact values for (sin PI) etc (issue 2695

From: thomasmorley65
Subject: Re: modify coord-rotate to get exact values for (sin PI) etc (issue 269530043 by address@hidden)
Date: Fri, 30 Oct 2015 22:59:54 +0000

On 2015/10/30 21:46:55, benko.pal wrote:
> And PostScript (and PDF and METAFONT) _do_ represent angles in
> So it's sort of silly that we cannot get an angle of 180 degrees
> straight into PostScript without change.

now that convinced me.  if we want to output angles in degrees, we
don't want to switch back and forth neither between degrees and
radians, nor between angles and sines.  at most one atan (acos) call


Just back home, noticing the discussion here.

Current patch tries to solve (or better: workaround) the problem in
I have some other pending patches _needing_ exact values from
I'd suggest to push it as is (unless some serious defect would be
detected) after countdown. So that I can go ahead with the follow up


Nevertheless, I'd love to work with degrees, rather than radians.
Though, I can't help implementing it as soon as C++ etc is involved.

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