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NFourierSeries
gives a numerical approximation to the order n Fourier exponential series expansion of expr, where expr is a periodic function of t with period 
.
更多信息
- To use
, you first need to load the Fourier Series Package using Needs["FourierSeries`"]. - The numerical approximation to the order n Fourier exponential series expansion of expr is by default defined to be
, where 
is given by 
NIntegrate[expr 
-
kt, {t, -
, }]. - Different choices for the period of expr can be specified using the option FourierParameters.
- With the setting FourierParameters->{a, b}, expr is assumed to have a period of
, and the order n Fourier exponential series expansion computed by 
is 
, where 
is given by 
NIntegrate[expr -bkt, {t, -
, 
}]. - In addition to the option FourierParameters,
can also accept the options available to NIntegrate. These options are passed directly to NIntegrate.
