hyperbolic function - analogues of the ordinary trigonometric functions, but defined using the hyperbola rather than the circle.
Free Hyperbolic Function Calculator - Calculates hyperbolic function values: sinh, cosh, tanh, csch, sech, coth
Free Hyperbolic Inverse Calculator - Calculates hyperbolic function values: arcsinh, arccosh, arctanh, arccsch, arcsech, arccoth