((1+((1.95023*^-19)x^2)/((7.04882*^-6)-x^2)^4)sh(.1y))/(cosh(.1y)±sqrt(1-(((1.95023*^-19)x^2)/((7.04882*^-6)-x^2)^4)(sh(.1y))^2))+((x^2)-1.80002*^-6)/((x^2)-7.04882*^-6)