Maple Professionel
Maple Académique
Maple Edition Étudiant
Maple Personal Edition
Maple Player
Maple Player for iPad
MapleSim Professionel
MapleSim Académique
Maple T.A. - Suite d'examens de classement
Maple T.A. MAA Placement Test Suite
Möbius - Didacticiels de mathématiques en ligne
Machine Design / Industrial Automation
Aéronautique
Ingénierie des véhicules
Robotics
Energie
System Simulation and Analysis
Model development for HIL
Modélisation du procédé pour la conception de systèmes de contrôle
Robotics/Motion Control/Mechatronics
Other Application Areas
Enseignement des mathématiques
Enseignement de l’ingénierie
Enseignement secondaire et supérieur (CPGE, BTS)
Tests et évaluations
Etudiants
Modélisation financière
Recherche opérationnelle
Calcul haute performance
Physique
Webinaires en direct
Webinaires enregistrés
Agenda des évènements
Forum MaplePrimes
Blog Maplesoft
Membres Maplesoft
Maple Ambassador Program
MapleCloud
Livres blancs techniques
Bulletin électronique
Livres Maple
Math Matters
Portail des applications
Galerie de modèles MapleSim
Cas d'Etudes Utilisateur
Exploring Engineering Fundamentals
Concepts d’enseignement avec Maple
Centre d’accueil utilisateur Maplesoft
Centre de ressources pour enseignants
Centre d’assistance aux étudiants
Matlab[fft] - compute the discrete Fourier transform of a vector in MATLAB(R)
Calling Sequence
fft(X)
fft(X, n)
Parameters
X
-
MapleMatrix or MatlabMatrix
n
(optional) integer
Description
The fft command uses MATLAB to compute the discrete Fourier transform of a vector, X.
If the optional parameter n is specified, then only the first n elements of vector X are used in the computation. If X has fewer than n elements, the missing elements are replaced with zeros (that is, X is padded with zeros up to the value of n).
Executing the fft command returns a Vector.
Examples
To see the result of the MATLAB calls, copy the examples to a worksheet and execute them. For help setting up MATLAB to work with Maple, see Matlab[setup].
Define the Maple matrix
The Fourier transform is computed as
[ 25. + 0. I ]
[ ]
[0.618033988749894901 - 1.90211303259030706 I ]
[-3.61803398874989490 + 4.97979656976556040 I ]
[-1.61803398874989490 + 1.17557050458494626 I ]
[-1.38196601125010509 + 0.449027976579585484 I]
[ -3. + 0. I ]
[-1.38196601125010509 - 0.449027976579585484 I]
[-1.61803398874989490 - 1.17557050458494626 I ]
[-3.61803398874989490 - 4.97979656976556040 I ]
[0.618033988749894901 + 1.90211303259030706 I ]
To obtain the fft of only the first two elements of v
[3. ]
[-1.]
See Also
DiscreteTransforms[FourierTransform], Matlab, Matlab[det], Matlab[evalM], Matlab[inv], MatlabMatrix
Download Help Document