Microsoft® Visual Basic® Scripting Edition Rnd Function | Language Reference Version 1

See Also

##### Description

> Returns a random number.

##### Syntax

> Rnd[(number)]

> The number argument can be any valid numeric expression.

##### Remarks

> The Rnd function returns a value less than 1 but greater than or equal to 0. The value of number determines how Rnd generates a random number:

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

> 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.

> Note To repeat sequences of random numbers, call Rnd with a negative argument immediately before using Randomize with a numeric argument. Using Randomize with the same value for number does not repeat the previous sequence.

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