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#1 2012-10-22 15:36:17

Leroy
Guest

Logarithm

Can one do logarithm of imaginery number?please explain.

#2 2012-10-22 18:47:44

bob bundy
Moderator

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Re: Logarithm

hi Leroy,

Yes you can.  See

http://en.wikipedia.org/wiki/Complex_logarithm

Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

#3 2012-10-22 22:30:27

Leroy
Guest

Re: Logarithm

There is no example in that link,it will be great if you show an example

#4 2012-10-22 22:54:23

bobbym
Administrator

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Re: Logarithm


In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.

#5 2012-10-22 23:01:50

Leroy
Guest

Re: Logarithm

So,let me try, is this correct
ln(3+4i)=ln5+atan(4/3)i

#6 2012-10-22 23:12:21

bobbym
Administrator

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Re: Logarithm

Hi;

That is correct. Very good!


In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.

#7 2012-10-23 00:56:00

Leroy
Guest

Re: Logarithm

Thank you a lot.

#8 2012-10-23 02:37:23

bobbym
Administrator

Offline

Re: Logarithm

Hi;

You are welcome!


In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.

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