Modifying numerical data

In VB, you can modify numerical data using many different operators and functions. We will focus on three types of numerical operations: mathematical, rounding/truncation, and type conversions.

Mathematical operations

The traditional math operations are supported in VB:

• Addition: You can add numeric values using the + operator. Here is an example:

  Dim n1 As Integer = 4
  Dim n2 As Integer = 2
  Dim n3 As Integer = n1 + n2

  The preceding code will declare two integer variables (n1 and n2) and add them together, storing their result in the third variable named n3.

• Subtraction: You can subtract values using the - operator. Here is an example:

  Dim n1 As Integer = 4
  Dim n2 As Integer = 2
  Dim n3 As Integer = n1 - n2

  The preceding code will declare two integer variables (n1 and n2) and subtract n2 from n1, storing the result in the third variable named n3.

• Multiplication: You can multiply values using the * operator. Here is an example:

  Dim n1 As Integer...