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December 29th, 2015, 04:24 PM  #1 
Newbie Joined: Dec 2015 From: Portugal Posts: 2 Thanks: 0  Transform Rectangular notation into still rectangle but with exponential
Hi! My teacher wrote the following equivalence: 1.JPG If you can not see the image, the equivalence is as follows: (1.10^3 ) . 10 . [ (j.500)/ (j+1)] x [e^(0.j)] = 3,5 . e^0,70.j I think he transformed from the form: a+b.j into z.e^(j.theta) which is equal to [Square root(a^2 +b^2)] . e^[j . arctg(b/a)] I Reduced the first expression (1.10^3 ) . 10 . [ (j.500)/ (j+1)] x [e^(0.j)] into 5+ 5.j But obviously what gave me does not lead to the desired result: 3,5 . e^0,70.j I don't understand what I can possibly did wrong or if there is another way to get this equivalence. Thank you! Last edited by Paula; December 29th, 2015 at 04:28 PM. 
December 30th, 2015, 07:12 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,469 Thanks: 2038 
I don't see a "7" in the original line. In any case, I can't make sense of what is done. Was there any context that might help by suggesting how the original equation was obtained?


Tags 
exponential, notation, rectangle, rectangular, transform 
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