ASINH

Description

Returns the hyperbolic arc sine of x.

Syntax

ASINH(<x>)

Parameters

Parameter	Description
<x>	The value for which the hyperbolic arc sine value is to be calculated

Return Value

The asinh value of parameter x.

Special Cases

• When x is NaN, returns NaN
• When x is positive infinity, returns Infinity
• When x is negative infinity, returns -Infinity
• When x is +0.0, returns 0
• When x is -0.0, returns -0
• Very large magnitudes may overflow to Infinity/-Infinity (for example, ±1e308)
• When x is NULL, returns NULL

Example

select asinh(0.0);

+------------+
| asinh(0.0) |
+------------+
|          0 |
+------------+

select asinh(1.0);

+-------------------+
| asinh(1.0)        |
+-------------------+
| 0.881373587019543 |
+-------------------+

select asinh(-1.0);

+--------------------+
| asinh(-1.0)        |
+--------------------+
| -0.881373587019543 |
+--------------------+

select asinh(cast('nan' as double));

+------------------------------+
| asinh(cast('nan' AS DOUBLE)) |
+------------------------------+
| NaN                          |
+------------------------------+

select asinh(cast('inf' as double));

+------------------------------+
| asinh(cast('inf' AS DOUBLE)) |
+------------------------------+
| Infinity                     |
+------------------------------+

select asinh(cast('-inf' as double));

+-------------------------------+
| asinh(cast('-inf' AS DOUBLE)) |
+-------------------------------+
| -Infinity                     |
+-------------------------------+