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exp

The exp function in XQuery calculates the exponential of a given numeric input, returning

e^{x}

, where

is Euler’s number that is approximately 2.71828, and

is the input argument.

math:exp(arg)

The following table describes the argument for this command:

Argument	Required/Optional	Description
arg	Required	The exponent value used to calculate ( e^{x} ). Accepts any numeric type (integer, decimal, float, double).

Returns the exponential value ( e^{x} ) as a numeric type.

Returns an empty sequence if the input is an empty sequence.

The following table lists some sample values and return values:

The input can be any numeric value, such as positive, negative, or zero.

The function returns a numeric value of the exponential calculation.

Gracefully handles empty input by returning an empty sequence.

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