Turn off convergence checking - "formal" integration
Apologies if something like this has been posted already - I have not found it.
I would like to be able to compute "formal integrals" of functions f(t,x) with respect to x, without having to use assume() to put restrictions on x. In particular, I want to compute
integral(e^(-t)*f,t,0,infinity). For example, right now if I try
I need to
assume(x < 1) for it to work. This is fine for simple integrals, but if the function f is more complicated, using
assume() becomes annoying. I'd like to be able to use a formal integral so that
1/(1 - f) whenever
f is a function only of x, without needing to use
assume() - or an equivalent function.
Edit: It occurred to me that just using integrate(f,t).subs(t=0) seems to work some of the time. I'd still like a better way, though