Docs Home → Develop Applications → MongoDB Manual
$asinh (aggregation)
$asinhNew in version 4.2.
Returns the inverse hyperbolic sine (hyperbolic arc sine) of a value.
$asinhhas the following syntax:{ $asinh: <expression> } $asinhtakes any valid expression that resolves to a number.$asinhreturns values in radians. Use$radiansToDegreesoperator to convert the output value from radians to degrees.By default
$asinhreturns values as adouble.$asinhcan also return values as a 128-bit decimal as long as the<expression>resolves to a 128-bit decimal value.For more information on expressions, see Expressions.
Behavior
null, NaN, and +/- Infinity
If the argument resolves to a value of null or refers to a field
that is missing, $asinh returns null. If the
argument resolves to NaN, $asinh returns NaN.
If the argument resolves to negative or positive infinity,
$asinh returns negative or positive infinity respectively.
Example | Results |
|---|---|
{ $asinh: NaN } | NaN |
{ $asinh: null } | null |
{ $asinh : Infinity} | Infinity |
{ $asinh : -Infinity } | -Infinity |