It seems sympy can not integrate sqrt(sin(x)).
I did the following: import sympy as sm from sympy.abc import x,y,z tointegrate=sm.sqrt(sm.sin(y)) sm.integrate(tointegrate) output is : Integral(sqrt(sin(y)), y) After a simple change of variable the integral is doable: def ytoz(z): return(sm.asin(z)) def dydz(z): return(sm.diff(ytoz(z),z)) subdict={y:cvytoz(z)} sm.integrate(dydz(z)*tointegrate.subs(subdict)) output is : z**(3/2)*gamma(3/4)*hyper((1/2, 3/4), (7/4,), z**2*exp_polar(2*I*pi))/(2*gamma(7/4)) best, Pallab -- You received this message because you are subscribed to the Google Groups "sympy" group. To view this discussion on the web visit https://groups.google.com/d/msg/sympy/-/-aC1_0EHC8YJ. To post to this group, send email to sympy@googlegroups.com. To unsubscribe from this group, send email to sympy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.