function log

Returns the logarithm of X. If no base is supplied, the logarithm to the base 10 is returned.

Syntax
result = log(X [, base])

Arguments

X: The value whose logarithm is to be returned. This can be a number (integer, real, complex) or a matrix. If X is a matrix, a matrix of the same size is returned where each element represents the result of the operation.

base: If given, the logarithm of X to this base will be returned

See also
function ln

X:	The value whose logarithm is to be returned. This can be a number (integer, real, complex) or a matrix. If X is a matrix, a matrix of the same size is returned where each element represents the result of the operation.
base:	If given, the logarithm of X to this base will be returned