testing ibpdv and ibpu

[parisse]

(05-12-2015 07:59 PM)salvomic Wrote:  I'm reading it and trying
\[ \int_0^1{\sqrt{1-x^{2}}}dx \]
assume(u>0); a:=subst('integrate(sqrt(1-x^2)),0,1,x)',x=sin(u)); a;

It should be
assume(u>0); a:=subst('integrate(sqrt(1-x^2),x,0,1)',x=sin(u)); a