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Inverse Log 10 value

Hello,
Can someone tell me how to derive the Inverse of Math.Log10(value)?
Thanks
Nov 16 '05 #1
6 21628
Randy,
Can someone tell me how to derive the Inverse of Math.Log10(value)?


Are you looking for Math.Pow( 10, x )

Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.
Nov 16 '05 #2
I'm not sure...as part of some program specs...I'm to calculate the Inverse
of Log10(of some value). I think you can see what I'm talking about if you
open the Windows Calculator in Scientific mode and then clicn the Inv switch
and then do a Log function on any number...
Example: The inverse of Log10(1.5) == 31.62277...
Log10(31.62277...) = 1.5
Thanks

"Mattias Sjögren" <ma********************@mvps.org> wrote in message
news:u0****************@TK2MSFTNGP11.phx.gbl...
Randy,
Can someone tell me how to derive the Inverse of Math.Log10(value)?


Are you looking for Math.Pow( 10, x )

Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

Nov 16 '05 #3
log10(31.62277) = 1.5
and
Pow(10,1.5) = 31.62277

Which is what you want right?
--
Adam Clauss
ca*****@tamu.edu

"Randy" <te**@temp.com> wrote in message news:eK**************@TK2MSFTNGP09.phx.gbl...
I'm not sure...as part of some program specs...I'm to calculate the Inverse
of Log10(of some value). I think you can see what I'm talking about if you
open the Windows Calculator in Scientific mode and then clicn the Inv switch
and then do a Log function on any number...
Example: The inverse of Log10(1.5) == 31.62277...
Log10(31.62277...) = 1.5
Thanks

"Mattias Sjögren" <ma********************@mvps.org> wrote in message
news:u0****************@TK2MSFTNGP11.phx.gbl...
Randy,
Can someone tell me how to derive the Inverse of Math.Log10(value)?


Are you looking for Math.Pow( 10, x )

Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.


Nov 16 '05 #4
"Randy" <te**@temp.com> wrote in message
news:eK**************@TK2MSFTNGP09.phx.gbl...
I'm not sure...as part of some program specs...I'm to calculate the Inverse of Log10(of some value). I think you can see what I'm talking about if you
open the Windows Calculator in Scientific mode and then clicn the Inv switch and then do a Log function on any number...
Example: The inverse of Log10(1.5) == 31.62277...
Log10(31.62277...) = 1.5
Thanks


Cast your mind back to high-school algebra.
log b = n just in case a^n=b
a

That's the definition of "log".

so

Pow(10,Log10(x)) = X, for all x

Which is the definition of "inverse".

David
Nov 16 '05 #5
I think you are right. If I do a Math.Pow(10,x) on it comes out
right...thanks
"Mattias Sjögren" <ma********************@mvps.org> wrote in message
news:u0****************@TK2MSFTNGP11.phx.gbl...
Randy,
Can someone tell me how to derive the Inverse of Math.Log10(value)?


Are you looking for Math.Pow( 10, x )

Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

Nov 16 '05 #6
Yes...that's right...thanks for the help!
"Adam Clauss" <ca*****@tamu.edu> wrote in message
news:u1**************@tk2msftngp13.phx.gbl...
log10(31.62277) = 1.5
and
Pow(10,1.5) = 31.62277

Which is what you want right?
--
Adam Clauss
ca*****@tamu.edu

"Randy" <te**@temp.com> wrote in message

news:eK**************@TK2MSFTNGP09.phx.gbl...
I'm not sure...as part of some program specs...I'm to calculate the Inverse of Log10(of some value). I think you can see what I'm talking about if you open the Windows Calculator in Scientific mode and then clicn the Inv switch and then do a Log function on any number...
Example: The inverse of Log10(1.5) == 31.62277...
Log10(31.62277...) = 1.5
Thanks

"Mattias Sjögren" <ma********************@mvps.org> wrote in message
news:u0****************@TK2MSFTNGP11.phx.gbl...
Randy,

>Can someone tell me how to derive the Inverse of Math.Log10(value)?

Are you looking for Math.Pow( 10, x )

Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.



Nov 16 '05 #7

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