Algebra
19 Online
Nnesha (nnesha):
Fourier series
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Nnesha (nnesha):
Nnesha (nnesha):
write a Fourier series using summation notation.
satellite73 (satellite73):
i wish i knew this
Nnesha (nnesha):
same ;-;
OpenStudy (518nad):
okay
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OpenStudy (518nad):
so what is f(x) here
OpenStudy (518nad):
tell me what u think f(x) and the interval is here
OpenStudy (518nad):
do not ruining the learning process pls
OpenStudy (518nad):
ruiningining
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OpenStudy (518nad):
xD let us continue!!!!11111111111111111
Nnesha (nnesha):
\[0<x <3\]
OpenStudy (518nad):
lets pick one instance of the pattern
OpenStudy (inkyvoyd):
first step, what dan says... draw out one period of the function in a way that will make the integrals the easiest
OpenStudy (518nad):
we have f(x) = 2x -1 , and x from 0 to 1
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OpenStudy (518nad):
so ur interval L is 1, and thats ur fn
OpenStudy (518nad):
now u know that f(x) = sum AnCos(2pinx/L) + BnSin(2pinx/L)
Nnesha (nnesha):
how do you know f(x) =2x-1 ??
OpenStudy (518nad):
now u will use orthognoality conditions to solve for the coeffs
OpenStudy (518nad):
cuz thats the equan of teh first line
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Nnesha (nnesha):
oh ok
OpenStudy (518nad):
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