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Formula manipulation?

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Jeffery J. Leader

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Feb 12, 2000, 3:00:00 AM2/12/00
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On Sun, 13 Feb 2000 01:18:39 GMT, tis...@nospam.4me (tiswas) wrote:
>L = exp(v*t*s)*p
>
>v=?

Since everything is being multiplied together, try taking logarithms.
(If p<0 is possible divide through by p first so L/p will be positive,
or just take |.|.) If L=0 and p=0, v cannot be determined...


William L. Bahn

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Feb 12, 2000, 3:00:00 AM2/12/00
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Yes.

Look up logarithms.

tiswas wrote in message <38a70576...@news.tesco.net>...
>Being Maths is not my strength,
>(and this btw, is definately not homework :) )
>i wondered if anyone could tell
>me if it's possible to manipulate
>the following formula to get v?
>
>L = exp(v*t*s)*p
>
>v=?
>
>Thanks,
>
>
>tiswas
>
>
>
>

Willse

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Feb 12, 2000, 3:00:00 AM2/12/00
to
tiswas-

> Being Maths is not my strength, (and this btw, is definately not homework
:) ) i wondered if anyone could tell me if it's possible to manipulate the
following formula to get v?

Yes, you can.

> L = exp(v*t*s)*p

First, divide both sides by p to get

L/p = exp(v*t*s)

Then, take the natural logarithm of both sides to get

ln(L/p)=v*t*s

Then, you simply divide both sides by (t*s) to get the solution:

v=[ln(L/p]/(t*s)

Make sense.

Travis J. Willse
sal-...@geocities.com


tiswas

unread,
Feb 13, 2000, 3:00:00 AM2/13/00
to
Being Maths is not my strength,
(and this btw, is definately not homework :) )
i wondered if anyone could tell
me if it's possible to manipulate
the following formula to get v?

L = exp(v*t*s)*p

v=?

Thanks,


tiswas

Clive Tooth

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Feb 13, 2000, 3:00:00 AM2/13/00
to
tiswas wrote:

> Being Maths is not my strength,
> (and this btw, is definately not homework :) )
> i wondered if anyone could tell
> me if it's possible to manipulate
> the following formula to get v?

Well, that was not a very good limerick.
Perhaps you should have said:


At maths I'm no wizard, you'll see.
This puzzle (not homework) vexed me.
You numerate nerds,
Use your secants or surds
To solve this equation, for v.


--

Clive Tooth
http://www.pisquaredoversix.force9.co.uk/
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