FP2 mix

Question 1

For PI, which would include x if RHS is exponential ?

Answer 1

Delta>0 and k=one of the auxiliary solutions

Question 2

For RHS=a function, do u have to include all smaller orders, including constant?

Answer 2

Yes

Question 3

For complex no and things like z^4, is +2pi*n written alongside 4 theta or 2/3 pi?

Answer 3

2/3 pi