Mathematics lovers must know logarithms. Logarithm is one of the material studied in mathematics. To master it (usually) likes knowledge in mathematics. Indeed, not everyone who likes mathematics will master logarithms (like myself), at least he once knew the forms and rules that exist in logarithms.

However, for people outside mathematics (maybe) do not know the logarithms. In order to know the material of logarithms, what is used is science at the elementary level. Regarding this, all of them must have obtained it, when in elementary school. Namely, rank number.

The rank is obtained from the multiplication of the number to the number itself as much as the rank. Example:

reads:

3 rank 4 equals 3 times 3 times 3
times 3, or number 3 rank 4 is multiplication 3 with 3 as many as 4.

Another example:

5 rank’s 2 is multiplication 5 with 5 as much as 2, or 5 rank’s2 equal to 5 times 5.
Then, what if (example) 4 is rank’s as much as (say) to n? to count him using the same method, which is 4 times 4 times and up to n times.
In general, rank numbers are formulated
with:

a = principal number.
n = rank number
b = yield number.

If in the rank (usually) looks for the result of a number after the number is given a rank or the like, logarithms are to look for that number. For example: what is the rank of 81 by 3? The problem can be solved using logarithms, by writing,

Meaning 81 is obtained from 3 ranks of numbers. After being calculated (so many times) it is obtained, so that the rank value is 4 or

Then, what is the relationship between logarithms and ranks in everyday life ?? Kemudian, apa hubungannya logaritma dengan pangkat (jabatan) ??

.to be continued..

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