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TANH

Returns the hyperbolic tangent of an expression that represents a numerical value:
TANH(x) = (ex-e-x)/(ex+e-x)

Format

TANH(x)

Argument

 
x
Any valid expression that evaluates to a real number.

Example

Using a hyperbolic tangent, the following function defines a smooth step function that transitions from a value of -1 to 1. The smoothness is controlled by the modifier, in this case 5.
 
Function
TANH(5*(TIME-1.5))
Result
-6.99
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