________________ / 2 / x + 400000000 / -------------- / 2 \/ 1 + 25*x
sqrt((x^2 + 400000000)/(1 + 25*x^2))
sqrt(400000000/(1 + 25*x^2) + x^2/(1 + 25*x^2))
_______________________ / 2 / 400000000 x / --------- + --------- / 2 2 \/ 1 + 25*x 1 + 25*x
((400000000.0 + x^2)/(1.0 + 25.0*x^2))^0.5
((400000000.0 + x^2)/(1.0 + 25.0*x^2))^0.5
_______________________ / 2 / 400000000 x / --------- + --------- / 2 2 \/ 1 + 25*x 1 + 25*x
sqrt(400000000/(1 + 25*x^2) + x^2/(1 + 25*x^2))