Triangular wave

Joined Feb 10, 2007
64
the fourier series equation given on wikipedia for a triangular wave is given in attachments .
Can anyone plese explain this result or just give the stepwise procedures .
I know that as A TRIANGULAR wave consists of only odd harmonics in the fourier notation a0 & an will be zero and there will be only bn components but how to derive the expression given.(see attachments)

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Dave

Joined Nov 17, 2003
6,970
the fourier series equation given on wikipedia for a triangular wave is given in attachments .
Can anyone plese explain this result or just give the stepwise procedures .
I know that as A TRIANGULAR wave consists of only odd harmonics in the fourier notation a0 & an will be zero and there will be only bn components but how to derive the expression given.(see attachments)
This should shed some light on your query.

Dave