Difference Between Log and Ln
The log number is simply defined as the method of obtaining the number which has its power to a base of 10. A natural logarithm can simply be referred to as the power to which the base ‘e’ that has to be raised to obtain a number called as its log number. It was initially discovered in the 17th century by John Napier, who discovered and conceptualized the theory of logarithms.
Key Differences Between Log and Ln
Difference Between Log and Ln | |
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Log |
Ln |
Log refers to a logarithm to the base 10 |
Ln refers to a logarithm to the base e |
This is also called as a common logarithm |
This is also called as a natural logarithm |
The common log is represented as log_{10} (x) |
The natural log is represented as log_{e} (x) |
The exponent form of the common logarithm is 10^{x} =y |
The exponent form of the natural logarithm is e^{x} =y |
The interrogative statement for the common logarithm is “At which number should we raise 10 to get y?” | The interrogative statement for the natural logarithm is “At which number should we raise Euler’s constant number to get y?” |
It is more widely used in physics when compared to ln |
As logarithms are usually taken to the base in physics, ln is used much lesser |
Mathematically, it is represented as log base 10 | Mathematically, this is represented as log base e |