Hello,
You are not doing anything wrong. SMath can not do symbolic integration. If you want to use it, you can try
MapleWrapper plugin mabe by
uni (Viacheslav N. Mezentsev). Then you can do this:
[MATH=eng]maple(-int(1,T.r,T.sat,T.reat))=-Treat+Tsat[/MATH]
or this
[MATH=eng]maple(int(1/sqrt(1-x^2),x))=arcsin(x)[/MATH]
Equal symbolic sign "->" has been changed into "=" and in spite of that, you can still see it in the palette as a right arrow symbol. It has been changed in the recent versions and it seems many people do not like that change.
Regards,
Radovan
When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"