C# has a built-in Math class that provides useful mathematical functions and operations. The class has the Log() function, which is used to compute the log of a specific number.
public static double Log (double value);
value: It is of the Double type and represents the input value that is determined by finding Log(). Its range is all double numbers.Double: It returns a Double number representing the natural log of the value.
NaN: It returns this for negative or NaN input in value.
PositiveInfinity: It returns this if value is PositiveInfinity.
NegativeInfinity: It returns this if value is 0.
The natural log is the log to the base
e, which is a mathematical expression with value 2.71828.
public static double Log (double value, double newbase);
value: It is one of the Double type and represents the input value, which is determined by finding Log(). Its range is all double numbers.newbase: It is of the Double type and represents the new base value for Log(). Its range is all double numbers.Double: It returns a Double number representing the log to the base newbase of the value.
NaN: It returns this if:
value < 0; newbase = anyvalue = any; newbase < 0value != 1; newbase = 0value != 1; newbase = +∞value = NaN; newbase = anyvalue = any; newbase = NaNvalue = any; newbase = 1PositiveInfinity: It returns this if:
value = 0; 0 < newbase < 1value = + ∞; newbase > 1NegativeInfinity: It returns this if:
value = 0; newbase > 1value = +∞; 0 < newbase < 1using System;class Educative{static void Main(){Double result = Math.Log(1.2);System.Console.WriteLine("Log(1.2) = "+ result);Double result1 = Math.Log(9.9, 0.1);System.Console.WriteLine("Log(9.9, 0.1) = "+ result1);}}