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Algebra

Cool goIITian

 Joined: 23 Apr 2012 Post: 33
27 Apr 2012 20:11:53 IST
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logarithms
Engineering Entrance , JEE Main , JEE Advanced , Mathematics , Algebra

what does logarithms actually mean and wht are they used for?

Cool goIITian

Joined: 29 Mar 2012
Posts: 62
27 Apr 2012 20:14:54 IST
1 people liked this

logaritms..in layman's language are actually functions that simplify calculations by converting multiplications to additions, exponential to multiplications and so on...

Cool goIITian

Joined: 29 Mar 2012
Posts: 62
27 Apr 2012 20:18:00 IST
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like,

Cool goIITian

Joined: 29 Mar 2012
Posts: 62
27 Apr 2012 20:19:13 IST
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our ears are logarithmic..meaning if u double intensity of sound it wont feel double ..but 100 times would do as log of 100 to base 10 is 2.

Cool goIITian

Joined: 29 Mar 2012
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27 Apr 2012 20:19:35 IST
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New kid on the Block

Joined: 27 Apr 2012
Posts: 27
27 Apr 2012 20:32:50 IST
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The logarithm of a number is the exponent by which another fixed value, the base, has to be raised to produce that number. For example, the logarithm of 1000 to base 10 is 3, because 1000 is 10 to the power 3: 1000 = 103 = 10 × 10 × 10. More generally, if x = by, then y is the logarithm of x to base b, and is written logb(x), solog10(1000) = 3.

New kid on the Block

Joined: 27 Apr 2012
Posts: 27
27 Apr 2012 20:34:08 IST
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whenever... we have to perform calculations to powers... we use a predefined function... and that function is named as LOGARITHM...

Cool goIITian

Joined: 29 Mar 2012
Posts: 62
27 Apr 2012 20:36:31 IST
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@rushi-wikipedia....an dmine-genuine!

New kid on the Block

Joined: 27 Apr 2012
Posts: 27
28 Apr 2012 10:50:42 IST
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yes .... m karthik.. @rushi-wikipedia , It was a Good explanation...

Cool goIITian

Joined: 23 Apr 2012
Posts: 33
30 Apr 2012 22:06:10 IST
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thnx for help buddies

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