[MauiWarrior]

I searched the article, but could not find basis or uncountable. Could you point where exactly I should look?

[mlevental]

equation 1 (in formal definition). the basis is e^(-st). if you don't know how that's a basis you need to read a little bit about functional analysis but just look at the integral as a continuous sum and f(t) as the basis coefficients and e^(-st) starts to look like a vector space basis (hilbert space) basis.

[MauiWarrior]

I am afraid it is a bit over my head. Would you be able to point me to the source?