Implement functions: sinh / cosh / tanh / asinh / acosh / atanh

[neverchanje]

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Syntax

SINH(dp DOUBLE PRECISION) → DOUBLE PRECISION

Description

The sinh function in Postgres is used to compute the hyperbolic sine
of a given number, which must be a DOUBLE PRECISION value. The result
is a DOUBLE PRECISION value representing the hyperbolic sine of the
input number.

Parameters

• dp (DOUBLE PRECISION): The input number for which to compute the
  hyperbolic sine.

Returns

The function returns a DOUBLE PRECISION value, which is the hyperbolic
sine of the input number.

Examples

SELECT SINH(0.0); -- Returns 0
SELECT SINH(1.0); -- Returns approximately 1.175201
SELECT SINH(-1.0); -- Returns approximately -1.175201

In these examples, the sinh function computes the hyperbolic sine of
the given input numbers.

[neverchanje]

Syntax

COSH(dp DOUBLE PRECISION) → DOUBLE PRECISION

Description

The cosh function in Postgres is used to compute the hyperbolic cosine
of a given number, which must be a DOUBLE PRECISION value. The result
is a DOUBLE PRECISION value representing the hyperbolic cosine of the
input number.

Parameters

• dp (DOUBLE PRECISION): The input number for which to compute the
  hyperbolic cosine.

Returns

The function returns a DOUBLE PRECISION value, which is the hyperbolic
cosine of the input number.

Examples

SELECT COSH(0.0); -- Returns 1
SELECT COSH(1.0); -- Returns approximately 1.543081
SELECT COSH(-1.0); -- Returns approximately 1.543081

In these examples, the cosh function computes the hyperbolic cosine of
the given input numbers.

[neverchanje]

Syntax

TANH(dp DOUBLE PRECISION) → DOUBLE PRECISION

Description

The tanh function in Postgres is used to compute the hyperbolic
tangent of a given number, which must be a DOUBLE PRECISION value. The
result is a DOUBLE PRECISION value representing the hyperbolic tangent
of the input number.

Parameters

• dp (DOUBLE PRECISION): The input number for which to compute the
  hyperbolic tangent.

Returns

The function returns a DOUBLE PRECISION value, which is the hyperbolic
tangent of the input number.

Examples

SELECT TANH(0.0); -- Returns 0
SELECT TANH(1.0); -- Returns approximately 0.761594
SELECT TANH(-1.0); -- Returns approximately -0.761594

In these examples, the tanh function computes the hyperbolic tangent
of the given input numbers.

[neverchanje]

Syntax

ASINH(dp DOUBLE PRECISION) → DOUBLE PRECISION

Description

The asinh function in Postgres is used to compute the inverse
hyperbolic sine (area hyperbolic sine) of a given number, which must be
a DOUBLE PRECISION value. The result is a DOUBLE PRECISION value
representing the inverse hyperbolic sine of the input number.

Parameters

• dp (DOUBLE PRECISION): The input number for which to compute the
  inverse hyperbolic sine.

Returns

The function returns a DOUBLE PRECISION value, which is the inverse
hyperbolic sine of the input number.

Examples

SELECT ASINH(0.0); -- Returns 0
SELECT ASINH(1.0); -- Returns approximately 0.881374
SELECT ASINH(-1.0); -- Returns approximately -0.881374

In these examples, the asinh function computes the inverse hyperbolic
sine (area hyperbolic sine) of the given input numbers.

[neverchanje]

Syntax

ACOSH(dp DOUBLE PRECISION) → DOUBLE PRECISION

Description

The acosh function in Postgres is used to compute the inverse
hyperbolic cosine (area hyperbolic cosine) of a given number, which must
be a DOUBLE PRECISION value greater than or equal to 1. The result is
a DOUBLE PRECISION value representing the inverse hyperbolic cosine of
the input number.

Parameters

• dp (DOUBLE PRECISION): The input number for which to compute the
  inverse hyperbolic cosine. The number must be greater than or equal to
  1.

Returns

The function returns a DOUBLE PRECISION value, which is the inverse
hyperbolic cosine of the input number.

Examples

SELECT ACOSH(1.0); -- Returns 0
SELECT ACOSH(2.0); -- Returns approximately 1.316958
SELECT ACOSH(3.0); -- Returns approximately 1.762747

In these examples, the acosh function computes the inverse hyperbolic
cosine (area hyperbolic cosine) of the given input numbers.

[neverchanje]

Syntax

ATANH(dp DOUBLE PRECISION) → DOUBLE PRECISION

Description

The atanh function in Postgres is used to compute the inverse
hyperbolic tangent (area hyperbolic tangent) of a given number, which
must be a DOUBLE PRECISION value between -1 and 1, excluding -1 and 1
themselves. The result is a DOUBLE PRECISION value representing the
inverse hyperbolic tangent of the input number.

Parameters

• dp (DOUBLE PRECISION): The input number for which to compute the
  inverse hyperbolic tangent. The number must be between -1 and 1,
  exclusive.

Returns

The function returns a DOUBLE PRECISION value, which is the inverse
hyperbolic tangent of the input number.

Examples

SELECT ATANH(0.0); -- Returns 0
SELECT ATANH(0.5); -- Returns approximately 0.549306
SELECT ATANH(-0.5); -- Returns approximately -0.549306

In these examples, the atanh function computes the inverse hyperbolic
tangent (area hyperbolic tangent) of the given input numbers.