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fourier.def
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1987-12-09
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564b
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DEFINITION MODULE Fourier ;
(*
(C) Michael Kowalik & PASCAL INTERNATIONAL
x - vector of points projected on abscissa
y - vector of points projected on ordinate
a,b - vectors of Fourier's coefficients
a[i]*cos(2*pi*x[i]/T)
b[i]*sin(2*pi*x[i]/T)
*)
EXPORT QUALIFIED Interpolation, RungeFaltung, DFT, FFT;
PROCEDURE Interpolation(VAR x, y, a, b : ARRAY OF REAL);
PROCEDURE RungeFaltung(VAR x, y, a, b : ARRAY OF REAL);
PROCEDURE DFT(VAR x, y, a, b : ARRAY OF REAL);
PROCEDURE FFT(VAR x, y, a, b : ARRAY OF REAL)
END Fourier.