What is a real world example of a logarithm?

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- Jan 9th 2012, 11:45 AMdelgeezeereal world example of log
What is a real world example of a logarithm?

- Jan 9th 2012, 12:03 PMchisigmaRe: real world example of log
A basic concept in Information Theory is the

*Entropy*os a random variable. Given a random variable X with alphabet $\displaystyle \chi= \{1,2,...,m\}$ , the the Entropy of X is ...

$\displaystyle H(X)= - \sum_{x \in \chi} p(x)\ \ln p(x)$ (1)

... where $\displaystyle p(x)=P\{X=x\}$...

Kind regards

$\displaystyle \chi$ $\displaystyle \sigma$ - Jan 9th 2012, 12:06 PMCharneyRe: real world example of log
Google is your friend. As it turns out, Wikipedia is packed full of valid real-world applications of logarithms. See this link.