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ouliwei
"Ace High"
Joined: 10 Feb 2006
Posts: 18
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 Posted: Wed Dec 06, 2006 4:51 pm Post subject: I need to use log and all I am getting is ln |
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My equation is:
round((5*(sqrt(players)/sqrt(place)))*(1+log(buyin+1)))
what I get in teh equation editor is:
round((5*(sqrt(players)/sqrt(place)))*(1+ln(buyin+1)))
Can anyone help me with this please. The equation comes from a league ranking system called Texas Rankem.
Thanks in advance |
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drneau
Site Admin
Joined: 13 Feb 2005
Posts: 2385
Location: Woodbury, MN
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| Posted: Wed Dec 06, 2006 5:25 pm Post subject: Re: I need to use log and all I am getting is ln |
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| ouliwei wrote: | My equation is:
round((5*(sqrt(players)/sqrt(place)))*(1+log(buyin+1)))
what I get in teh equation editor is:
round((5*(sqrt(players)/sqrt(place)))*(1+ln(buyin+1)))
Can anyone help me with this please. The equation comes from a league ranking system called Texas Rankem.
Thanks in advance |
So, are you saying you want to use Log with base 10 rather than the natural logrithm?
This might help.
log10(x) = ln(x) / ln (10)
_________________
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Dr. Neau (not a real doctor)
http://drneau.com
http://home.comcast.net/~jneau |
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Dix
"Royal Flush - No Hat"
Joined: 17 Jun 2005
Posts: 246
Location: W.Poland Maine - USA
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| Posted: Wed Dec 06, 2006 5:26 pm Post subject: |
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ln stands for "Natural Log"... which IS the natual log function... default in Java.
If what are looking for is a BASE 10 Log.... like the default log function in Excel... just divide the natural log function by ln(10)
ln(x)/ln(10)
making your equation...
round((5*(sqrt(players)/sqrt(place)))*(1+(ln(buyin+1)/ln(10))))
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- Dix |
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drneau
Site Admin
Joined: 13 Feb 2005
Posts: 2385
Location: Woodbury, MN
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| Posted: Wed Dec 06, 2006 5:35 pm Post subject: |
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Also, square root (x) / square root (y) = square root (x / y), if that makes it any easier.
_________________
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Dr. Neau (not a real doctor)
http://drneau.com
http://home.comcast.net/~jneau |
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