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Assalamu’alaikum wr wb
Group 15

1. M. Derry R.A (A1C410210)
2. Hairul Akbar (A1C410211)
Complex Form Of Fourier Series
• After we substite sin nx and cos nx to fourier
  series formula we can get the complex form of
  fourier series is :
                     inx                inx                2 inx          2 inx
f ( x)   c0   c1 e          c 1e                  c2e              c 2e           ....

                                    1
With coefficient:          c0                 f ( x ) dx
                                2
                                1                    inx
                           cn             f ( x )e         dx
                                2
• Example

            1,          x 0
   f ( x)   {   0,0 x
Other Interval
• Fuction of other interval is:
• With coefficient:
• Example

                 0,0 x l
    f ( x)   {
             1, l x 2 l
Thank you

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Complex form fourier series