Andreas Prilop <nh******@rrzn-user.uni-hannover.de> wrote:
Second, don't attempt to make a horizontal bar but simply write
V(a²+b²)
where I used "V" to represent the square root sign.
I'm not so sure about it - in some cases, a horizontal bar might improve
the appearance, as I discuss at
http://www.cs.tut.fi/~jkorpela/math/#uol
Note that using text-decoration: overline puts it a little lower than
using a top border. There's still the minor problem that the square root
sign does not connect with the overline. We can make the gap smaller, at
the risk of causing higher actual line height if this appears inside
running text:
<big>√</big><span style="text-decoration:overline">103</span>
On the other hand, there's the low-tech reliable approach of using
sqrt(103), though it's possible that some people won't recognize it but
would understand the root sign - but this can usually be handled by
giving an explanation - perhaps on the fly, by using
<a href="expl.html#sqrt" title="square root of">sqrt</a>(103)
But in a relatively mathematical text, I would try the root sign method,
with overline, though probably using parentheses as well if the radicand
contains any binary operators.
--
Yucca,
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