SECH

Calculates the hyperbolic secant of a provided value.

Syntax

SECH(<value>)

Parameters

Parameter	Description	Supported input types
`<value>`	The value that determines the returned hyperbolic secant.	`DOUBLE PRECISION`

Return Type

DOUBLE PRECISION SECH is the reciprocal of COSH, which is never zero, so SECH is defined for every real argument. A large argument gives an infinite hyperbolic cosine, whose reciprocal is zero.

Example

The hyperbolic secant of 0 is 1, its maximum:

SELECT SECH(0) as result;

result double
1

Rows: 1Execution time: 5.21ms

At LN(2) the result is exact — 1 / COSH(LN(2)), or 1 / 1.25:

SELECT SECH(LN(2)) as result;

result double
0.8

Rows: 1Execution time: 5.21ms

Overview

Performance and Observability

Security

Self-Managed

Managed service

Guides

SQL reference

Release notes

API reference

Legal

Syntax

Parameters

Return Type

Example

​Syntax

​Parameters

​Return Type

​Example

Syntax

Parameters

Return Type

Example