Returns the hyperbolic tangent of the specified arithmetic value.
TANH(x)
x is a floating-point value representing an angle.
TANH(0.0) /* returns 0.0 */
A TANH operation on floating-point decimal data is actually performed using the floating-point binary operation. Thus, the range of the operands and the result of the operation are limited to the ranges for floating-point binary numbers.
Description
The TANH function returns the hyperbolic tangent of the angle x expressed in radians such that -1 ≤ TANH(x) ≤ 1.
The result has the same data type as x.