Integral NA in home, CAS

[parisse]

I'm adding code to automatically split the interval so that
int(sqrt (1+(x^2)^(-1/3)),x,-1,1)
returns the expected answer.
You can check at http://www-fourier.ujf-grenoble.fr/~parisse/xcasen.html. (If you have already visited this page, make sure to empty your browser offline download cache)