Fourier Series
Fourier Series Definition : If the numbers a₀,a₁....aₙ,....,b₁,...bₙ.... are derived from a function f by means of Euler_Fourier formulas : π aₙ = 1/π ∫ f(x) cosnx dx ,n=0,1,2... -π .......(1) π bₙ = 1/π ∫ f(x) sinnx dx , n=0,1,2... -π then the series ...