May 25th, 2016, 06:44 AM  #41 
Senior Member Joined: Apr 2014 From: UK Posts: 919 Thanks: 331  
May 25th, 2016, 11:43 PM  #42 
Banned Camp Joined: May 2016 From: earth Posts: 703 Thanks: 56 
i am not getting it.

May 26th, 2016, 03:05 AM  #43 
Senior Member Joined: Dec 2012 From: Hong Kong Posts: 853 Thanks: 311 Math Focus: Stochastic processes, statistical inference, data mining, computational linguistics  
May 26th, 2016, 03:13 AM  #44 
Banned Camp Joined: May 2016 From: earth Posts: 703 Thanks: 56 
I mean log purpose how it was discovered?

May 26th, 2016, 03:39 AM  #45 
Senior Member Joined: Dec 2012 From: Hong Kong Posts: 853 Thanks: 311 Math Focus: Stochastic processes, statistical inference, data mining, computational linguistics  
May 26th, 2016, 03:47 AM  #46 
Banned Camp Joined: May 2016 From: earth Posts: 703 Thanks: 56 
why he keep it name as log and ln?

May 26th, 2016, 03:53 AM  #47 
Senior Member Joined: Dec 2012 From: Hong Kong Posts: 853 Thanks: 311 Math Focus: Stochastic processes, statistical inference, data mining, computational linguistics  1610s, Modern Latin logarithmus, coined by Scottish mathematician John Napier (15501617), literally "rationumber," from Greek logos "proportion, ratio, word" (see logos) + arithmos "number" (see arithmetic). Online Etymology Dictionary 
May 26th, 2016, 04:03 AM  #48 
Banned Camp Joined: May 2016 From: earth Posts: 703 Thanks: 56 
ok thanks

May 28th, 2016, 07:16 PM  #49 
Senior Member Joined: Jan 2014 From: The backwoods of Northern Ontario Posts: 390 Thanks: 70 
a=5.7895 b=2.2358 a*b= 12.9441641 I have Casio fx991MS. Using it, I found: log a = .762641058 log b = .349432951 log a + log b = 1.112074009 antilog 1.112074009 = 12.94416407 

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