Logarithm Base

dfgrosso shared this question 14 years ago
Answered

Hi everyone,


I searched the forum and i didn't found nothing about this. i hope i didn't miss it.


Can i set the base of the logarithm. In Help files only exists base 2, 10 and e. Is it possible to define any base or do i have to aply the base switch rule?


Thanks in advance!


Daniel

Comments (7)

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do i have to aply the base switch rule?


Yes

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You can incorporate the change of base formula into the logarithmic equation:

f(x)=a ln(x-c)/ ln(b)+d

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Hi,


in 4.0 you can use log(b,x), j-Dog's formula is equivalent to f(x)=a log(b,x-c)+d.

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hello,

I used the following formula:f(x)=a log(b,x-c)+d

but the writing in latex appears as follows.is it that can improve the writing like this: 0.3 log[size=85]1.6[/size](x+2) 7a26516ac41992c10e94430c98631cf6

Files: 10.JPG
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hello

these problems are normal in GG


you can define

h(x)=x-c

g(x)=simplify[h(x)]

f(x)=f(x) = a log(b, g(x)) + d


i think you'll like more

saludos

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these problems are normal in GG


In fact it's a bug which we fixed yesterday (so will be OK in the next release :) )

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hello,

thanks murkle the problem is resolved.

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