EXCEL LOG FUNCTION

The Excel LOG function computes the logarithm of a given integer in relation to a particular base.

Syntax :

=LOG( number[base] )

Parameters :

  • The following parameter are:

number –

  • The positive interest number for which you wish to compute the logarithm.

[base] –

  • An optional input indicating the base in which the logarithmic should be computed.

Step By Step Guide of LOG Function

Example :

If the [base] option is missing, the default value of 10 is used (i.e. the logarithm to the base 10 is calculated).
The worksheet below contains four instances of the Excel Log function:

  • #NUM! – Occurs if either the provided number or [base] parameter is negative or zero.
  • #DIV/0! – Happens if the given [base] parameter equals 1.
  • #VALUE! – Occurs if either the specified number parameter or the given [base] argument i.

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