# Newbie question : plotting an integrated function

Hi everybody,

easiest way to plot (with matplotlib, gnuplot, anything .... but not
Maple(tm)) an integrated function

For example, \int_{x}^{2x} \dfrac{1}{1+\atan(t)}dt ...

** I though i would do it using python and scilab : (as a newbie) i'am
still looking in the doc

** i tried SAGE : i don't understand if it's a maxima/octave/???
choice and how i can do it exactly

Can anybody give me a hint ?

Thanks a lot