HP 48gII Graphing Calculator Manuel d'utilisateur télécharger pdf (Page 516)

Once again, replacing e

, results in

This result is used to define the function c(n) as follows:

DEFINE(‘c(n) = - (((-1)^n-1)/(n^2*π^2*(-1)^n)’)

Next, we define function F(X,k,c0) to calculate the Fourier series (if you

completed example 1, you already have this function stored):

DEFINE(‘F(X,k,c0) = c0+Σ(n=1,k,c(n)*EXP(2*i*π*n*X/T)+

c(-n)*EXP(-(2*i*π*n*X/T))’),

To compare the original function and the Fourier series we can produce the

simultaneous plot of both functions. The details are similar to those of

example 1, except that here we use a horizontal range of 0 to 2 and a

vertical range from 0 to 1, and adjust the equations to plot as shown here:

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HP 48gII Graphing Calculator Manuel d'utilisateur Page 516