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#1 2005-11-07 07:27:05

iman
Member
Registered: 2005-11-05
Posts: 8

history of logarithm

hi good friends!
I searched the web for a document that contain history of logarithm but didn't find an iteresting thing!
Is there a savier?

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#2 2005-11-07 07:56:06

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: history of logarithm

There's a good entry about logarithms in Wikipedia. It's got a paragraph about their history if you scroll down.


Why did the vector cross the road?
It wanted to be normal.

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#3 2005-11-07 18:24:12

iman
Member
Registered: 2005-11-05
Posts: 8

Re: history of logarithm

isn't there more and perfectly referene?
I want to know: who does logarithm making easy calculus?

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#4 2005-11-07 19:00:48

Flowers4Carlos
Member
Registered: 2005-08-25
Posts: 106

Re: history of logarithm

applying logarithms into a complicated function can make the function much easier.  for example:

y= [x^(3/4)√ (x² + 1)]/(3x + 2)^5

apply log to both sides

lny = 3/4lnx + 1/2lx(x² + 1) - 5ln(3x + 2)

all we gotta do now is add and subtract which is much easier than the original one.

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