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Cosh(x)

Returns the hyperbolic cosine of x, e.g., Cosh(1)=1.54308.

Sinh(x)

Returns the hyperbolic sine of x, e.g., Sinh(1)=1.1752.

Tanh(x)

Returns the hyperbolic tangent of x, e.g., Tanh(1)=0.761594.