Chapter 3: Logarithms (48 videos)
Introduction of Logarthim
The difficult and complicated calculation s be come easier by using logarithms.logarithms. Abu Muhammad Musa Al Khwarzimi first gave the idea of logarithms. Later on, in the seventeenth century John Napier extended his work on logarithms and prepared tables for logarithms. He used "e" as the base for the preparation of logarithm tables.Professor Henry Briggs had a special interest in the work of John Napier. He prepared by Jobst Burgi in 1620 A.D.Scientific Notation
There are so many numbers that we use in science and technical work that are either very small or very large.For instance, the distance from the Earth to the sun is 150,000,000 Km approximately and a hydrogen atom weights 0.000,000,000,000,000,000,000,001,7 gram. while writing such a numbers in ordinary standard form. There is a chance of error by omitting a zero or writing more than actual zeros. To overcome this problem scientists have developed a concise,precise, and convenient method to write very small or very large numbers.
Definition of Scientific Notation
A number written in the scientific form a x 10^n where 1<=a<=10 and n is an integer is called scientific Notation.
| 3.3: Common Logarithm and Natural Logarithm |
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| 1. Common Logarithm |
| 2. Problem 1: Common Logarithm |
| 3. Natural logarithm |
| 4. Problem 1: Natural logarithm |
| 3.5: Application of Laws of Logarithm in Calculations |
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| 1. Applications of Logarithm Laws in Calculations |
| 2. Problem 1: Applications of Logarithm Laws in Calculations |
| 3. Problem 2: Applications of Logarithm Laws in Calculations |
| 4. Problem 3: Applications of Logarithm Laws in Calculations |
| 5. Problem 4: Applications of Logarithm Laws in Calculations |
