LOG
The LOG function calculates the logarithm of a number to a specified base. It is used to determine the power to which a given base must be raised to produce a specified number.
Syntax 🔗
=LOG(Number, Base)
Number | The number for which the logarithm is to be calculated. |
Base | The base to which the logarithm is calculated. If omitted, the default base is 10. |
About LOG 🔗
The LOG function in Excel helps you determine the power to which a base must be raised to yield a specific number. This function is useful for calculating logarithmic values in mathematical equations or scientific calculations. Simply input the number and the base to get the logarithm.
Examples 🔗
Let's dive into an example. If you want to find the logarithm base 2 of 8, use the formula: =LOG(8, 2). This will return 3, since 2 raised to the power of 3 equals 8.
In another scenario, if you wish to calculate the natural logarithm (base e) of 20, use the formula: =LOG(20). This will return approximately 2.9957, indicating that e raised to the power of approximately 2.9957 equals 20.
Notes 🔗
To calculate logarithms with bases other than 10, specify the base value as the second argument in the LOG function. If you omit the base argument, the function uses the default base of 10.
Questions 🔗
The LOG function calculates the logarithm of a number to a specified base. It helps determine the power to which a given base must be raised to produce the specified number.
What happens if the base argument is not specified in the LOG function?If the base argument is not specified in the LOG function, Excel assumes the base to be 10 by default and calculates the base-10 logarithm of the specified number.
Can I use the LOG function for natural logarithms?Yes, the LOG function is versatile enough to handle natural logarithms (base e) as well. Simply input the number as the argument, and Excel will compute the natural logarithm without specifying the base.