- #1
Biker
- 416
- 52
I don't really understand how their inverses work.
For example, in solving 2nd order linear non-homogeneous differential equations.
The particular solution is found by
## y_{pi} = \frac{p(x)}{f(D)} ##
And they continue by expanding using maclaurin series. How do you treat an operator as a variable? How could you possibly assign a value of zero to it? How can you just take the reciprocal of it?
Is there any reference that discusses this?
For example, in solving 2nd order linear non-homogeneous differential equations.
The particular solution is found by
## y_{pi} = \frac{p(x)}{f(D)} ##
And they continue by expanding using maclaurin series. How do you treat an operator as a variable? How could you possibly assign a value of zero to it? How can you just take the reciprocal of it?
Is there any reference that discusses this?