[Maxima-discuss] Integrating piecewise defined functions

[Eduardo O. <edu...@gm...>]

Hi list,

what is the recommended way to integrate piecewise defined
functions? I tried this,

  f(x) := if     x<0 then 0
          elseif x<1 then 1
          else            0;
  g(x) := if     x<0 then 0
          elseif x<1 then x
          else            0;
  h(x) := integrate(f(t)*g(x-t), t, -2, +2);

and I couldn't find a way to make Maxima calculate this
integral...

        integrate(f(x), x, -2, 4);
  float(integrate(f(x), x, -2, 4));

The convolution left Maxima even more confused, obviously...
Thanks in advance!
  Eduardo Ochs
  http://anggtwu.net/eev-maxima.html
  http://anggtwu.net/eev-qdraw.html