I tried the following:
h1:=t->piecewise(t < 0, 0, binomial(n, t)*p^t*(1-p)^(n-t));
k1:=t->piecewise(type(h1(t), And(realcons,Not(infinity) ) ), h1(t), 0);
add(k1(t)*u1(t),t=-infinity..infinity); [didn´t work. maybe 'add' kann only compute a finite number.]
First question: => How am I going to compute an EV, i.e. the sum from -infinity to infinity?
Next I tried:
add(k1(t)*u1(t),t=0..1000); [but Maple didn´t reply with a decimal number.]
Usually one can force Maple to print a decimal number, by putting a dot behind one input number.
Anyway, this did not help here. May someone tell me how I can tell Maple to print a decimal number instead of this really long expression?