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$sinh (aggregation)

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$sinh

New in version 4.2.

Returns the hyperbolic sine of a value that is measured in radians.

$sinh has the following syntax:

{ $sinh: <expression> }

$sinh takes any valid expression that resolves to a number, measured in radians. If the expression returns a value in degrees, use the $degreesToRadians operator to convert the value to radians.

By default $sinh returns values as a double. $sinh can also return values as a 128-bit decimal if the <expression> resolves to a 128-bit decimal value.

For more information on expressions, see Expressions.

If the input argument resolves to a value of null or refers to a field that is missing, $sinh returns null. If the argument resolves to NaN, $sinh returns NaN. If the argument resolves to negative or positive Infinity, $sinh returns negative or positive Infinity respectively.

Example
Results
{ $sinh: NaN }
NaN
{ $sinh: null }
null
{ $sinh: -Infinity }
-Infinity
{ $sinh: Infinity }
Infinity

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