Reference - HP 48gII User Manual

2 2
Thus, c = 1/3, c = (π⋅i+2)/π , c = (π⋅i+1)/(2π ).
0 1 2
The Fourier series with three elements will be written as
g(t) ≈ Re[(1/3) + (π⋅i+2)/π ⋅exp(i⋅π⋅t)+ (π⋅i+1)/(2π
2 2
)⋅exp(2⋅i⋅π⋅t)].

Reference

For additional definitions, applications, and exercises on solving differential
equations, using Laplace transform, and Fourier series and transforms, as well
as numerical and graphical methods, see Chapter 16 in the calculator's user's
guide.
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