A number type is used for numeric values. You would give variable n a numeric value the same way you would a string type variable, like:

<cx:let name="n" value="123">
 ... $n contains the numeric value 123 ...

With fractions, use a decimal point, like in the following:

<cx:let name="n" value="15.99">
 ... $n contains the value 15.99 ...



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