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$cosh (aggregation)
$coshNew in version 4.2.
Returns the hyperbolic cosine of a value that is measured in radians.
$coshhas the following syntax:{ $cosh: <expression> } $coshtakes any valid expression that resolves to a number, measured in radians. If the expression returns a value in degrees, use the$degreesToRadiansoperator to convert the value to radians.By default
$coshreturns values as adouble.$coshcan 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.
Behavior
null, NaN, and +/- Infinity
If the input argument resolves to a value of null or refers to a
field that is missing, $cosh returns null. If the
argument resolves to NaN, $cosh returns NaN. If
the argument resolves to negative or positive Infinity,
$cosh returns positive Infinity.
Example | Results |
|---|---|
{ $cosh: NaN } | NaN |
{ $cosh: null } | null |
{ $cosh: -Infinity } | Infinity |
{ $cosh: Infinity } | Infinity |