HP 48gII Graphing Calculator Manual do Utilizador descarregar pdf (Página 519)

The simplification of the right-hand side of c(n), above, is easier done on

paper (i.e., by hand). Then, retype the expression for c(n) as shown in the

figure to the left above, to define function c(n). The Fourier series is calculated

with F(X,k,c0), as in examples 1 and 2 above, with c0 = 0.5. For example,

for k = 5, i.e., with 11 components, the approximation is shown below:

A better approximation is obtained by using k = 10, i.e.,

For k = 20, the fitting is even better, but it takes longer to produce the graph:

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HP 48gII Graphing Calculator Manual do Utilizador Página 519