Mathematical functions (math class) in VB.NET

There are many situation when we need some mathematical operations in our program, such as some trigonometric and logarithmtics.

.Net framework provides us Math class of System namespaces that allows us very rich set of static methods. It also contains e and PI.

These are the list of some mathematical function:

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.
Equals	Overloaded. Determines whether two Object instances are equal. (inherited from Object)
Exp	Returns e raised to the specified power.
Floor	Overloaded. Returns the largest integer less than or equal to the specified number.
GetHashCode	Serves as a hash function for a particular type. (inherited from Object)
GetType	Gets the Type of the current instance. (inherited from Object)
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.
ReferenceEquals	Determines whether the specified Object instances are the same instance. (inherited from Object)
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.
ToString	Returns a String that represents the current Object. (inherited from Object)
Truncate	Overloaded. Calculates the integral part of a number.

 

It is very important to know that those methods take double type parameters  returns double type value.

Example :

Private Sub Example_MathClassFunctions()

        Dim i As Integer

        i = Math.Pow(5, 5)

        MessageBox.Show("5 to the power= " & i)

 

        i = Math.Sqrt(5)

        MessageBox.Show("squre root of 5= " & i)

 

        i = Math.Round(5.68743)

        MessageBox.Show("round figure of 5.68743= " & i)

 

        i = Math.Min(4, 7)

        MessageBox.Show("minimum value in 4 and 7= " & i)

 

        Dim j As Double

 

        j = Math.Log(15)

        MessageBox.Show("Log value of 15 = " & j)

 

        j = Math.Sin(90)

        MessageBox.Show("sin 90 = " & j)

 

        Dim x As Integer = 511

        Dim y As Integer = 50

        Dim Value As Integer

        Dim Remainder As Integer

        Value = Math.DivRem(x, y, Remainder)

        MessageBox.Show("value is  = " & Value & " and reminder is = " & Remainder)

 

    End Sub

We already say that members and methods of math class are static ,means they are accessed using the class name itself instead of its object.