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# Rnd Function

Devolve un número aleatorio entre 0 e 1.

## Sintaxe:

    Rnd [(Expresión)]

## Valor de retorno:

Duplo

## Parámetros:

Expression: Has no effect, is ignored if provided.

The Rnd function returns decimal fractions ranging from 0 (included) to 1 (excluded) according to a uniform distribution. It uses the Mersenne Twister 19937 random-number generator. To generate random integers in a given range, use a formula like in the example below. A Randomize statement with a defined seed value can be used beforehand, if a predictable sequence of numbers is desired.

## Códigos de erro

5 Chamada de procedemento incorrecta

## Exemplo:

    Sub ExampleRandomSelect

    Dim iVar As Integer

        iVar = Int((15 * Rnd) -2)

        Select Case iVar

            Case 1 To 5

                Print "Número do 1 ao 5"

            Case 6, 7, 8

                Print "Número do 6 ao 8"

            Case Is > 8 And iVar < 11

                Print "Maior que 8"

            Case Else

                Print "Fóra do rango de 1 a 10"

        End Select

    End Sub

Temas relacionados

Randomize Statement