Re: sin(4*pi^2*t) 0 >= t <= pi/3, can you read this ?
Re: sin(4*pi^2*t) 0 >= t <= pi/3, can you read this ?
- Subject: Re: sin(4*pi^2*t) 0 >= t <= pi/3, can you read this ?
- From: Graham J Lee <email@hidden>
- Date: Thu, 17 Jun 2004 19:45:30 +0100
- Organization: University of Oxford Department of Redundancy Department
On 2004-06-17 19:32:13 +0100 Steve Bird <email@hidden> wrote:
On Jun 17, 2004, at 2:12 PM, Graham J Lee wrote:
On 2004-06-17 18:07:10 +0100 Steve Bird <email@hidden> wrote:
sin(4*pi^2*t) 0 >= t <= pi/3
AS WRITTEN, it's nonsensical.
OK, pointless bit of offtopicness, but 0>=t<=pi/3 is perfectly
valid. It
means the same as t<=0 though. For instance, t=-1 satisfies both
conditions.
Maybe you can explain the sense of using "0>=t<=pi/3" when no number
that
meets the first condition will NOT meet the second.
Not everything that is valid makes sense. Look at all the valid Perl
code out there ;-)
There are cases when the above condition will arise implicitly, for
instance if the range of valid t is computed not entered.
Maybe you can explain the sense of specifying an infinite range for a
(assumed computer program) function.
I assumed it was a test message, based on the 'can you read this?'
subject.[*] Still, taking your assumption as valid for the sake of
response, there are plenty of instances in which an infinite range is
required/desired/used in computer programs. A trivial example:
while(1)
{
runThrough++;
/*do funky stuff*/
if(quitCondition) break;
}
there may be an example which requires $\sin(4\pi^2t)$ to be
calculated over and over, I can't think of it in any context outside
Maple-like languages but I expect that other programmers have come
across different challenges to me.
I'm still betting on the typo...
It probably was a typographical mistake. Still, pointless
offtopicness ensued :-).
Cheers,
Graham.
[*]I originally thought it was a spam, as did spamassassin :-/
--
Graham Lee
Wadham College
OX1 3PN
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