Factorial [Fact]

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The Factorial function calculates the factorial of a number. Parameters ------------------ Value         The value to use in the calculation. This is typically a field in a data series or a calculated value. Function Value ------------------------ The factorial is calculated by taking the product of all the positive integers from 1 to the given value. By definition, the factorial of 0 is 1 and the factorial of a negative number is null. Data     Abs(Data) -------------------------------    1                1            <---- 1    2                2            <---- 1 x 2    3                6            <---- 1 x 2 x 3    4                24          <---- 1 x 2 x 3 x 4    5                120        <---- 1 x 2 x 3 x 4 x 5