because the DTFT is a way to convert signals from the time domain to the frequency domain. In time domain we represent a value of intensity vs a given time. but in frequency domain we represent a signal as a magnitude and a phase. So the DTFT is not complete until you have a magnitude and phase angle. It would be like going to the bank with Canadian dollars, asking for Mexican Pesos and then the teller gives you US Dollars because they stopped halfway.
If you don't realize that n and N are two separate things... you're going to be in for a really bad time. Because crap like that is really common in physics.
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Can you please explain the manipulation step in detail...?
He "factors" out the sqrt of right term, or (right term)^1/2
I agree with Shaikh, can you kindly explain the manipulation part in detailed ?
Very clear-thank you sir
Hi. Why do you divide (N/2)?
Thank you sir❤
Sir if x(n)=Sin(won)u(n)
After applying dtft
Do I need to do Manipulation
e^(i/2)-e^(-i/2) = 2j so shouldn't there only be one sin?
i think the answer is e^(-2jw)*sin(5w/2)
Sir why do we require magnitude and phase after dtft..please sir clarify
because the DTFT is a way to convert signals from the time domain to the frequency domain. In time domain we represent a value of intensity vs a given time. but in frequency domain we represent a signal as a magnitude and a phase. So the DTFT is not complete until you have a magnitude and phase angle. It would be like going to the bank with Canadian dollars, asking for Mexican Pesos and then the teller gives you US Dollars because they stopped halfway.
Parcero muchas gracias, me sirvió tu vídeo.
Thank you so much sir
Thank you Sir
thanks a lot bhai
5/2 ? How did that happen ?
Because he takes out half. If you multiply it back in just try it you will get e^(5/2-5/2) which is e^(0) which is 1. You simply take out half.
where is the 2J ?
how you can solve this when n-1=5 ? i mean that how?
instead of n, we are introducing N... N-1=n
N-1=4
N=5
Got lost in the manipulation of n
Bro u forgot 2j?
2j gets cancelled...it's there in numerator as well as denominator
Bro how n will be 5 4-1 it's 3 know
that's what I'm thinking ans 3 is right or wrong
N-1= 5 , where n=4
4-1=5 how it's possible
In which school u learn this kind of substrate
It should be noted that N - 1 = 4 was the problem
solving this for N would be N = 5
If you don't realize that n and N are two separate things... you're going to be in for a really bad time. Because crap like that is really common in physics.
Our schools are different, and I used to wonder why aren't there idiots in my school.. well, they don't get admission here 😂😂
@@chimponkoman lol true
N-1 n ka value hai 4
Abh n = -1 shift hua to + hotha nah tho
N=4+1 =5