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Simple partial fractions help (warning complex analysis :P ) 
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#1
Apr2707, 01:58 AM

P: 85

1. The problem statement, all variables and given/known data
the question can be ignored  it involves laplace and Z transforms of RLC ckts.
none 3. The attempt at a solution
0.2 = As + A(0.1 + j(0.995)) + Bs + B(0.1  j0.995) so As + Bs = 0 or (A + B) = 0 or A = B so 0.2 = j(0.995A)  j(0.995B) somethings not right  if i evaluate this I don't get anywhere near the answer 


#2
Apr2707, 03:06 AM

P: 1,235

Well, check this:
(s + 0.1  I 0.995)(s + 0.1 + I 0.995) = 1.00002 + 0.2 s + s² there is a small inaccuracy ... but nothing more. Solve your last equation and turn to another exercice. What does that become: 0.2 = j(0.995A)  j(0.995B) if A=B ? 


#3
Apr2707, 03:24 AM

P: 85

sorry dude i'm still a little confused.
thats just a rounding error from the J term. 


#4
Apr2707, 04:39 AM

P: 1,235

Simple partial fractions help (warning complex analysis :P )
I just wanted to say that, except for decimals, you did it correctly.
You should solve the last equation and conclude. 


#5
Apr2807, 03:38 PM

P: 85

thanks man i got it now  actually my next question is a little off topic ... but how did i get a post stuck in this thread?
http://physicsforums.com/showthread.php?t=166823&page=2 I don't understand the thread whatsover. ANyways thanks for the help i actually got the answer i'l put it up when i get home. 


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