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e (Function)

This function returns the java.lang.Math.E constant, which is the closest double value to e, where e is the base of the natural logarithms.

Syntax​

<DOUBLE> math:e()

Example 1​

CREATE STREAM InValueStream (inValue double);

insert into OutMediationStream
select math:e() as eValue
from InValueStream;

This function returns the constant, 2.7182818284590452354, which is then closest double value to e and directs the output to OutMediationStream output stream.