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From: "Anthony J. Bentley" <anthony@anjbe.name>
To: tech@mdocml.bsd.lv
Subject: eqn(7) doesn't distinguish mathematical words
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Date: Mon, 19 Jun 2017 22:36:43 -0600
Message-ID: <52112.1497933403@cathet.us>

Hi,

>From the Plan 9 eqn(1) manual:
"Mathematical words like sin, cos, log are made Roman automatically."

The exception proves the rule, which is that eqn(1) italicizes words
in general.

.EQ
a ab sin
.EN

In groff and Heirloom, the above results in italic a and ab, and
roman sin. In mandoc -Tpdf, it instead results in italic a, and roman
ab and sin.

Here's the list of mathematical words in Plan 9 eqn(1) and groff eqn(1):
and
for
if
Re
Im
sin
cos
tan
arc
sinh
coth
tanh
cosh
lim
log
ln
max
min
exp
det

Heirloom adds:
sec
csc
asin
acos
atan
asec
acsc

-- 
Anthony J. Bentley
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