A piecewise continuous function ''f'' is a function whose domain can be divided into a [[countable]] number of pieces, and the restriction of ''f'' on each piece is a [[continuous function]]. Piecewise continuous functions are interesting because [[Fourier series]] works on such functions. (That is, the resynthesized function from the Fourier analysis is equal to the original function wherever that function was continuous.)
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A '''piecewise continuous function''' ''f'' is a function whose domain can be divided into a [[countable]] number of pieces, and the restriction of ''f'' on each piece is a [[continuous function]]. Piecewise continuous functions are interesting because [[Fourier series]] works on such functions. (That is, the resynthesized function from the Fourier analysis is equal to the original function wherever that function was continuous.)