Logarithms

Cette application se compose de matériel de base pour la résolution des problèmes liés à logarithmes

In mathematics, the logarithm is the inverse operation to exponentiation. That means the logarithm of a number is the exponent to which another fixed number, the base, must be raised to produce that number. In simple cases the logarithm counts factors in multiplication. For example, the base 10 logarithm of 1000 is 3, as 10 to the power 3 is 1000 (1000 = 10 × 10 × 10 = 103); 10 is used as a factor three times. More generally, exponentiation allows any positive real number to be raised to any real power, always producing a positive result, so the logarithm can be calculated for any two positive real numbers b and x where b is not equal to 1. The logarithm of x to base b, denoted logb(x), is the unique real number y such that

by = x.

For example, as 64 = 26, then:

log2(64) = 6

Following parts of Logarithms have been discussed in the app

1) Definition of Logarithms

2) Laws of Logarithms

3) Comman Logarithms

4) Characterstic and Mantissa

5) Logarithmic Tables

6) How to find mantissa

7) Anti Logarithms

This app is especially useful for students of CBSE, ICSE and IIT JEE.

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