## Napier's Logarithm

Topics that don't fit anywhere else.

### Napier's Logarithm

From the definition of Napier’s logarithm, derive the formula:
Nap.log(M/N)
Nap.log(M^r)
mepomero

Posts: 2
Joined: Mon Jan 20, 2014 1:48 am

mepomero wrote:From the definition of Napier’s logarithm, derive the formula:
Nap.log(M/N)
Nap.log(M^r)

Are you using this definition, as shown below?

. . . . .$\mbox{NapLog}(N)\, =\, L\, \mbox{ for }\, N\, =\, 10^7\, \left(1\, -\, 10^{-7}\right)^L$

Also, you have posted two expressions. What is the "formula" you are being asked to derive?