Oops --
The problem appears to be in Ghostgum/ghostscript and how it
displays. If I increase the point size substantially, I get
the double tilde that I want, but when I set it at 12 points,
it *appears* to be a straight line with a tilde underneath,
except for a slight crook at the end of the straight line.
Evidently it's a screen resolution problem (though I use a large,
high-resolution display).
Sorry about the false alarm... I keep forgetting that interpolation
of pixel locations can lead to such anomalies.
Thanks for the response. I was not aware of the \(~~ escape
sequence.
Clarke
(Ted Harding) wrote:
On 06-May-06 Clarke Echols wrote:
I am playing around with a little project and decided to make a
drawing using groff accompanied by mathematical analysis text.
I decided to use the \(~= sequence for the "approximately equal"
symbol in the math table, using the eroff manual I have from the
late 1980s as a reference. In that manual, the symbol is a
horizontal bar with a tilde bar above it, but in the groff package
I got with cygwin, the tilde is on the bottom. My PostScript
tutorial by Ross Smith indicates that the math font character is
actually a pair of tildes.
What's going on? I've never seen a tilde on the bottom before.
Is this a take-off spoof like GNU's not Unix? :-)
Clarke
Hmm, I'm not sure where you are getting this result from.
Check out .../devps/S and you should find that both \(~=
and \(~~ map to PostScript "approxequal" which is your
"pair of tildes".
Best wishes,
Ted.
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E-Mail: (Ted Harding) <[EMAIL PROTECTED]>
Fax-to-email: +44 (0)870 094 0861
Date: 06-May-06 Time: 07:46:37
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