What is the fundamental difference between the phase relationship of the harmonics of the square wave as compared to the harmonics of a peaked wave?

What is the fundamental difference between the phase  relationship of the harmonics of the square wave as compared  to the harmonics of a peaked wave?
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1 Answer

Answer :

All the odd harmonics are in phase with the fundamental in the  square wave. This is not true of the odd harmonics in the peaked  wave.
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