# Rnd function

Returns a Single containing a pseudo-random number.

## Syntax

`Rnd [ (Number) ]`

The optional Number argument is a Single or any valid numeric expression.

## Return values

If Number is Rnd generates
Less than zero The same number every time, using Number as the seed.
Greater than zero The next number in the pseudo-random sequence.
Equal to zero The most recently generated number.
Not supplied The next number in the pseudo-random sequence.

## Remarks

The Rnd function returns a value less than 1 but greater than or equal to zero.

The value of Number determines how Rnd generates a pseudo-random number:

• For any given initial seed, the same number sequence is generated because each successive call to the Rnd function uses the previous number as a seed for the next number in the sequence.
• Before calling Rnd, use the Randomize statement without an argument to initialize the random-number generator with a seed based on the system timer.

To produce random integers in a given range, use this formula:

``Int((upperbound - lowerbound + 1) * Rnd + lowerbound)``

Here, upperbound is the highest number in the range, and lowerbound is the lowest number in the range.

## Example

This example uses the Rnd function to generate a random integer value from 1 to 6.

``````Dim MyValue As Integer
MyValue = Int((6 * Rnd) + 1)    ' Generate random value between 1 and 6.``````