Logbase

Return the logarithm of positive numeric value x to a specified base y.

Syntax

Logbase(x,y)

Arguments

• x

  An integer or real number greater than zero

• y

  A positive integer indicating the base of the logarithm

Returns

The logarithm of x to base y

Exceptions

If x is zero or negative, or not a number, returns an error value

Example

• Logbase(256, 2)

  [Returns 8]

• Logbase(1000, 10)

  [Returns 3]

• Logbase(TagVal('att1', '14-Dec-16'), 16)

  [Return the logarithm of the value of 'att1' at 12:00am on Dec 14, 2016 to base 16]