Version: 2.2.1 +
The formula 'Rand' returns a random number greater than or equal to 0 and less than 1, evenly distributed.
Unique_value: is a unqiue value that prevents caching of the result. Each time 'Rand' is calculated with a different 'Unique_value', a new result is generated.
In the following example you can see how the formula 'Rand' works.
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