/y\ atan|-| \x/ y ------- + -------------- 3 4 2 2 2*x 2*x + 2*x *y
atan(y/x)/((2*x^3)) + y/(2*x^4 + (2*x^2)*y^2)
/ 2 2\ /y\ x*y + \x + y /*atan|-| \x/ ----------------------- 3 / 2 2\ 2*x *\x + y /
(x*y + (x^2 + y^2)*atan(y/x))/(2*x^3*(x^2 + y^2))
y/(2.0*x^4 + 2.0*x^2*y^2) + 0.5*atan(y/x)/x^3
y/(2.0*x^4 + 2.0*x^2*y^2) + 0.5*atan(y/x)/x^3
2 /y\ 2 /y\ x*y + x *atan|-| + y *atan|-| \x/ \x/ ----------------------------- 5 3 2 2*x + 2*x *y
(x*y + x^2*atan(y/x) + y^2*atan(y/x))/(2*x^5 + 2*x^3*y^2)
/ 4 2 2\ /y\ 3 \2*x + 2*x *y /*atan|-| + 2*y*x \x/ --------------------------------- 3 / 4 2 2\ 2*x *\2*x + 2*x *y /
((2*x^4 + 2*x^2*y^2)*atan(y/x) + 2*y*x^3)/(2*x^3*(2*x^4 + 2*x^2*y^2))
/ 2 2\ /y\ x*y + \x + y /*atan|-| \x/ ----------------------- 3 / 2 2\ 2*x *\x + y /
(x*y + (x^2 + y^2)*atan(y/x))/(2*x^3*(x^2 + y^2))
2 /y\ 2 /y\ x*y + x *atan|-| + y *atan|-| \x/ \x/ ----------------------------- 3 / 2 2\ 2*x *\x + y /
(x*y + x^2*atan(y/x) + y^2*atan(y/x))/(2*x^3*(x^2 + y^2))