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Re: Implied brackets, are they really there?
Posted:
Feb 18, 1999 2:27 AM


In article <36cbbb97.321739269@news.newsguy.com>, Quentin Grady <quentin@inhb.co.nz> wrote: >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 email john.harper@vuw.ac.nz phone (+64)(4)463 5341 fax (+64)(4)463 5045



