200*x
----------------
2
/ 2 \
1 + \10*x - 9/ 200.0*x/(1.0 + (-9.0 + 10.0*x^2)^2)
100*x
------------------
2 4
41 - 90*x + 50*x 100*x
------------------
2 4
41 - 90*x + 50*x 100*x
------------------
2 4
41 - 90*x + 50*x