[OS X TeX] formula with words

[Vijay Kaul]

On Thu, 30 Aug 2007 21:33:49 -0400, Ross Moore <ross at ics.mq.edu.au> wrote:

> Hi Vijay,
>
> On 31/08/2007, at 2:16 AM, Vijay Kaul wrote:
>
>> On Thu, 30 Aug 2007 09:15:30 -0400, Tim Brophy <timbrophy at mac.com>  
>> wrote:
>>
>>> Hi Bridget,
>>>
>>> Try
>>>
>>> $$\frac{\text{Skill Variety } + \text{ Task Identity } + \text{ Task  
>>> Significance}}{3} = \text{ Autonomy } \times \text{ Feedback}$$
>>>
>>> with the amsmath package loaded.
>>
>> Does the amsmath package fix the "double dollar sign"? If not (and new  
>> users should get into the habbit of this), using "\[" and "\]" is  
>> better.
>
> Please, what do you mean by "fix" here?
<snip>
> If there is some problem that you know about, I'd like
> to know what it is, and the kind of "fix" that you think
> is needed.

I'm no wizard, so my answer may be less than satisfying, but here's what  
I've come to understand. According to Lamport (p.233 of _LaTeX: A document  
preparation system_), "Plain TeX's $$ does not work properly; it has been  
replaced by the LaTeX commands \[ and \]."

If I recall correctly, I've read that $$ fails in some regard to vertical  
spacing. But I'm not entirely sure about that, and I definitely don't know  
exactly /how/ $$ fails. Since I'm so uncertain about all of that, I was  
wondering if amsmath somehow fixes the problem. I'm guessing, though, that  
it doesn't.

-- 
Vijay Kaul

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