TANH function
Hyperbolic tangent function. TANH(x) returns the hyperbolic tangent of x. The argument x must be expressed in radians. To convert degrees to radians you use the RADIANS function. The result is in the range (−1, 1).
The hyperbolic tangent can be defined as:
$$ \operatorname{tanh}(x) = \frac{\operatorname{sinh}(x)}{\operatorname{cosh}(x)} = \frac{e^x - e^{-x}}{e^x + e^{-x}} $$
The argument x can be a real number, a complex number, or a matrix. When it is a matrix, the function returns a matrix with the same dimensions and with the TANH function applied to all elements.
Examples
TANH(0) equals 0
TANH(1) equals 0.7615942
Calculator
Graph
Relation with COSH and SINH functions
