This post will guide you how to use Excel LN function with syntax and examples in Microsoft excel.
The Excel LN function returns the natural logarithm of a given number. And the natural logarithms are based on the constant e (the value is equal to 2.718281828…).
The LN function is a build-in function in Microsoft Excel and it is categorized as a Math and Trigonometry Function.
The LN function is available in Excel 2016, Excel 2013, Excel 2010, Excel 2007, Excel 2003, Excel XP, Excel 2000, Excel 2011 for Mac.
The syntax of the LN function is as below:
= LN (number)
Where the LN function arguments is:
- number – This is a required argument. The number that you want the logarithm. And the number must be a positive real number.
- If either the supplied number argument is negative or zero, the LN function will return #NUM! Error.
- If the number argument is non-numeric, the LN function will return #VALUE! Error.
- LN is the inverse of the Exp function.
Excel LN Function Examples
The below examples will show you how to use Excel LN Function to calculate the natural logarithm of a given number.
1# to get the natural logarithm of 14, enter the following formula in Cell B1.
= LN (14)
2# to get the natural logarithm of the value of the constant e (2.71828), enter the following formula in Cell B2.
= LN (2.71828)
3# to get the natural logarithm of e raised to the power 2, enter the following formula in Cell B2.
= LN (EXP(2))
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