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Topic: Implied brackets, are they really there?
Replies: 26   Last Post: Feb 19, 1999 1:29 PM

 Messages: [ Previous | Next ]
 John F Harper Posts: 214 Registered: 12/3/04
Re: Implied brackets, are they really there?
Posted: Feb 18, 1999 2:27 AM

In article <36cbbb97.321739269@news.newsguy.com>,
>This response CC'd by email
> On Wed, 17 Feb 1999 17:18:59 GMT,
>jsavard@tenMAPSONeerf.edmonton.ab.ca (John Savard) wrote:
>

>>quentin@inhb.co.nz (Quentin Grady) wrote, in part:
>>

>>> 15 + 6
>>>-------
>>> 3 + 4

>>Similarly with the radical sign for square roots.

A problem there is the difference between what LaTeX calls \surd and
\sqrt. If I represent the radical sign with no horizontal bar (vinculum)
after it by / as ASCII has nothing better, then \surd x + a looks like

/x + a. That has a faint air of ambiguity about it, dispelled by either
\sqrt{x}+a or \sqrt{x+a} which puts a vinculum over what it needs to:
_ _____
/x + a or /x + a, equal to 4,2 respectively if x = 1, a = 3.

You may of course also use /(x) + a or /(x+a).

John Harper, School of Mathematical and Computing Sciences,
Victoria University, Wellington, New Zealand
e-mail john.harper@vuw.ac.nz phone (+64)(4)463 5341 fax (+64)(4)463 5045

Date Subject Author
2/17/99 Jake Wildstrom
2/17/99 John Savard
2/18/99 John F Harper
2/17/99 John Rickard
2/17/99 Ailc1
2/17/99 Keith Ramsay
2/19/99 Gus Gassmann
2/19/99 Zdislav V. Kovarik
2/17/99 Darren Lo