
Re: Help with map /@
Posted:
Nov 8, 2012 2:10 AM


On Nov 7, 2012, at 12:56 AM, KFUPM <hussain.alqahtani@gmail.com> wrote:
> I have a this expression: > > Ex= T1[x]+T2[y]+T3[z]; > > I want to integrate the first term with respect to x, the second w.r.t y and the third with respect to z and then sum them all. I want to use the map function (/@) or similar to do that for me automatically. Your help is really appreciated.
We may need more information:
(1) do you literally want T1[x], T2[y], T3[z]? or are these actual defined functions. If the latter, then there's the difficulty of the way Mathematica reorders expressions automatically  e.g.:
T1[x_]:=x^2 T2[x_]:=Sin[x] T3[x_]:=Exp[x]
T1[x] + T2[y] + T3[z] Exp[z] + x^2 + Sin[y]
Thus we no longer know which function is which!
(2) Does each of T1[x], T2[y], T3[z] depend on _only_ the one indicated variable x, y, z or, to the contrary, does T2[y], say, also involve x and or z?
 Murray Eisenberg murray@math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 5491020 (H) University of Massachusetts 413 5452838 (W) 710 North Pleasant Street fax 413 5451801 Amherst, MA 010039305

