## Thursday, October 30, 2008

### Mathematical Functions in C# / Logarithmic Function in C# / Trigonometric Functions in C#

Mathematical Functions in .NET / Logarithmic Function in .NET / Trigonometric Functions in .NET

The common logarithmic, trigonometric functions are available in the .NET framework as part of System.Math class. Here is a list of functions that are available

 Name Description Abs Overloaded. Returns the absolute value of a specified number. Acos Returns the angle whose cosine is the specified number. Asin Returns the angle whose sine is the specified number. Atan Returns the angle whose tangent is the specified number. Atan2 Returns the angle whose tangent is the quotient of two specified numbers. BigMul Produces the full product of two 32-bit numbers. Ceiling Overloaded. Returns the smallest integer greater than or equal to the specified number. Cos Returns the cosine of the specified angle. Cosh Returns the hyperbolic cosine of the specified angle. DivRem Overloaded. Calculates the quotient of two numbers and also returns the remainder in an output parameter. Exp Returns e raised to the specified power. Floor Overloaded. Returns the largest integer less than or equal to the specified number. IEEERemainder Returns the remainder resulting from the division of a specified number by another specified number. Log Overloaded. Returns the logarithm of a specified number. Log10 Returns the base 10 logarithm of a specified number. Max Overloaded. Returns the larger of two specified numbers. Min Overloaded. Returns the smaller of two numbers. Pow Returns a specified number raised to the specified power. Round Overloaded. Rounds a value to the nearest integer or specified number of decimal places. Sign Overloaded. Returns a value indicating the sign of a number. Sin Returns the sine of the specified angle. Sinh Returns the hyperbolic sine of the specified angle. Sqrt Returns the square root of a specified number. Tan Returns the tangent of the specified angle. Tanh Returns the hyperbolic tangent of the specified angle. Truncate Overloaded. Calculates the integral part of a number.

How to use Mathematical Function PI in C# (.NET)

Mathematical PI, which represents the ratio of the circumference of a circle to its diameter, is specified by the constant, π and can be retrieved by

Console.WriteLine("Value of PI = " + Math.PI);

Similarly other trigonometric functions like Sin, Cos, Tan etc can be used in C# as follows:

public static void MathFunctions()

{

Console.WriteLine("Value of PI = " + Math.PI);

Console.WriteLine("Value of Tan 45 = " + Math.Tan(45*Math.PI/180));

Console.WriteLine("Value of Cos 45 = " + Math.Cos(45 * Math.PI / 180));

Console.WriteLine("Value of Sin 45 = " + Math.Sin(45 * Math.PI / 180));

}

Functions Sin, Cos, Tan etc accept angle in Radians (NOT in degrees). If you want to use degrees as input, use appropriate conversion functions

Radians to Degree Conversion using C#

{

try

{

return Math.PI * degrees / 180;

}

catch (Exception ex)

{

Console.WriteLine(ex.ToString());

return -1;

}

}

Console.WriteLine("Value of Tan 45 = " +

The output will be as shown below                      1. tnx mate, I wasted 10 mins bcoz I didn't know this functions takes its arguments in radians

2. Thanks for the post, helped in my assignments! :)

3. thanx for this it helped alot

4. http://www.codeproject.com/script/Articles/ArticleVersion.aspx?aid=339638&av=501750

:) derivative, integrate... all