**Answer:** Currently there is no predefined function that will do this
but it can be easily accomplished given Maple's design.
Greg Fee of the Maple Symbolic Computation Lab suggests you define
a function ``expand/Int`` as follows:

Maple is designed so that users may add their own special routines for dealing with special functions. Functions such as> `expand/Int` := proc(a,r) > local x,f,y,c; > if type(r,name) then x := r > elif type(r,`=`) then x := op(1,r) > else ERROR(`bad 2nd arg`) > fi; > if type(a,`*`) then > c := 1; > y := 1; > for f in a do if has(f,x) then y := y*f else c := c*f fi od; > c*Int(y,r) > elif type(a,`+`) then map(procname,a,r) > else Int(a,r) > fi > end;

Here's an example of how the above

> Int(a*x^n+a*f(x)*sin(1)*Pi,x); / | n | a x + a f(x) sin(1) Pi dx | / > expand("); / / | n | a | x dx + a sin(1) Pi | f(x) dx | | / /

Related help files include: `expand, combine, Int, simplify`

gagin@thsun1.jinr.ru