System Namespace   Math Class

---

Returns the logarithm of a specified number in a specified base.

[ VB ]
Overloads Public Shared Function Log ( _
   ByVal a As Double, _
   ByVal newBase As Double _
) As Double

[ C# ]
public static double Log (
   double a,
   double newBase
);

[ C++ ]
public: static double Log (
   double a,
   double newBase
);

[ JScript ]
public static function Log (
   a : double,
   newBase : double
) : double;

a

A number whose logarithm is to be found.

newBase

The base of the logarithm.

Sign of a	Returns
Positive	The logarithm of a, in base, newBase; that is, lognewBase a.
Zero	PositiveInfinity
Negative	NaN

If a is equal to PositiveInfinity and newBase is not equal to PositiveInfinity, NegativeInfinity, or NaN, this method returns PositiveInfinity. If newBase is equal to PositiveInfinity and a is not equal to PositiveInfinity, NegativeInfinity, or NaN, this method returns 0. If both a and newBase are equal to PositiveInfinity, or a or newBase is equal to NaN or NegativeInfinity, this method returns NaN.

Parameters a and newBase are specified as base 10 numbers.

Math Members   Math.Log Overload List