Discrete Fourier Transform

This library provides you a Fast Fourier Transform utility.

developer Developer: SourceForge.net
license License: Freeware
operating systems Operating System: All


Tiny-DSP library contains c sources of a fast, tiny, portable and generic FFT (Fast Fourier transform) and inverse FFT.

developer Developer: Tinydsp
license License: Freeware
operating systems Operating System: Windows; BSD; Linux


C routines for numeric computation of sin and cos Fourier transform of the stretched exponential function exp(-t^b), also known as Kohlrausch-Williams-Watts function.

developer Developer: apps.jcns.fz-juelich.de
license License: Freeware
operating systems Operating System: All


This code implements the O(n log n) Cooley-Tukey FFT algorithm as simply as possible.

developer Developer: ww25.uselesspython.com
license License: Freeware
operating systems Operating System: All


Online Guitar Tuner java applet which analyse your microphone or any other sound input to find fundamental frequency using a Fast Fourier Transform.

developer Developer: openstudio.fr
license License: GNU General Public License (GPL)
operating systems Operating System: OS Independent (Written in an interpreted language)


SciPy is an Open Source library of scientific tools for Python.

developer Developer: SourceForge.net
license License: Freeware
operating systems Operating System: All


Digital Signal Processing Application provides you DFT values in both forms cartisian and polar.

developer Developer: planet-source-code.com
license License: Freeware
operating systems Operating System: All


Gwyddion is a modular program for SPM (scanning probe microscopy) data visualization and analysis.

developer Developer: SourceForge.net
license License: Freeware
operating systems Operating System: All


An algorithm to numerically invert functions in the Laplace field is presented.

developer Developer: Fausto Arinos Barbuto
license License: Python License
operating systems Operating System: Windows


A suite of Ada 2005 generics to facilitate iterative and recursive parallelism for multicore systems and provide safer recursion for single and multicore systems.

developer Developer: Paraffin
license License: Freeware
operating systems Operating System: Windows; BSD; Linux


Using eval() To Transform Symbolic Expressions script allows you to convert simple arithmetic expressions from infix to to converorm.

developer Developer: code.activestate.com
license License: Freeware
operating systems Operating System: All


Discrete Cosine/Sine Transformations script is a Python implementation of discrete Cosine/Sine transformations.

developer Developer: code.activestate.com
license License: Freeware
operating systems Operating System: All


It tries to approximate a f(x) function with a m term Fourier series, using the quad MATLaB function.

developer Developer: mathworks.com
license License: Freeware
operating systems Operating System: All


The Discrete Event Calculus Reasoner is an open source program for performing automated commonsense reasoning using the event calculus, a comprehensive and highly usable logic-based formalism.

developer Developer: SourceForge.net
license License: Freeware
operating systems Operating System: All


Implements the static behaviours of the Fourier Class.

developer Developer: members.shaw.ca
license License: Freeware
operating systems Operating System: All


Using eval() To Transform Symbolic Expressions script allows you to convert simple arithmetic expressions from infix to to converorm.

developer Developer: code.activestate.com
license License: Artistic License, GNU General Public License (GPL)
operating systems Operating System: Windows, Linux, Mac OS, BSD, Solaris


The recipe gives simple implementation of a Discrete Proportional-Integral-Derivative (PID) controller.

developer Developer: Caner
license License: Freeware
operating systems Operating System: Windows


PHP transForm is a form generator and processor that allows a website developer an easy way to view/add/edit/delete data in various databases.

developer Developer: SourceForge.net
license License: Freeware
operating systems Operating System: All


This program can transform a text to code and save the code as a *.

developer Developer: planetsourcecode.com
license License: Freeware
operating systems Operating System: All


Harminv is a free program (and accompanying library) to solve the problem of harmonic inversion — given a discrete-time, finite-length signal that consists of a sum of finitely-many sinusoids (possibly exponentially decaying) in a given bandwidth, it determines the frequencies, decay constants, amplitudes, and phases of those sinusoids.

developer Developer: ab-initio.mit.edu
license License: Freeware
operating systems Operating System: All