2.71828182845905^x/(2.0 + 2.71828182845905^x)
2.71828182845905^x/(2.0 + 2.71828182845905^x)
x (cosh(1) + sinh(1)) ------------------------ x 2 + (cosh(1) + sinh(1))
cosh(x) + sinh(x) --------------------- 2 + cosh(x) + sinh(x)
(cosh(x) + sinh(x))/(2 + cosh(x) + sinh(x))