TANH

A function that calculates the hyperbolic tangent. expr is expected to be in radians (not degrees).

Syntax

TANH(expr)

Argument

expr: A real number representing radians or an argument of another data type that can be implicitly converted to a numeric data type.

Return Value

The return value has the same data type as expr.

Example

SELECT tanh(NULL), tanh(0), tanh(1), tanh(acos(-1));

+-------------+-------------+-------------+----------------+
|  TANH(NULL) |   TANH(0)   |   TANH(1)   | TANH(ACOS(-1)) |
|-------------+-------------+-------------+----------------|
|        NULL |           0 |       ~0.76 |             ~1 |
+-------------+-------------+-------------+----------------+