# Fast fourier transformation in c

The following C project contains the C source code and C examples used for fast fourier transformation. This program will sample sound from your
Audiodevice and apply a Fouriertransformation
to the sample buffer.

The following Matlab project contains the source code and Matlab examples used for regularized inverse laplace transform .
rilt Regularized Inverse Laplace Transform
[g,yfit,cfg] = rilt(t,y,s,g0,alpha)
Array g(s) is the Inverse Laplace Transform of the array y(t), calculated by a regularized least squares method.

The following Matlab project contains the source code and Matlab examples used for clebsch gordan coefficient solver gui.
Easy to use Clebsch-Gordan coefficient solver for adding two angular momentums in Quantum Mechanics. This tool is created for my Quantum Mechanics II course offered by Dr. Thompson in Summer of 2007.
[Instruction]
Execute "GUI.m" script by invoking "GUI"

The following Matlab project contains the source code and Matlab examples used for stationary phase approximation for performing fourier transforms.
This function allows one to calculate the Fourier transform of a chirped function evaluated at specific points using the stationary phase approximation.

The following Matlab project contains the source code and Matlab examples used for fourier derivative.
Spectral methods of solving partial differential equations may involve the use of a Fourier transform to compute derivatives.

The following Matlab project contains the source code and Matlab examples used for inverse laplace transform function.
INVLAPFUN Time Function from Laplace Transform.

The following Matlab project contains the source code and Matlab examples used for inverse fourier transform for xmds.
Calculate Inverse Fourier transform according to
1/(2*pi) \int dk f(k) * exp(i*k*x)
x = -L/2:dx:L/2-dx.
k = -kmax:dk:kmax-dk,
dk = 2*pi/L, kmax = pi/dx;

The following Matlab project contains the source code and Matlab examples used for fourier transform application. .
This based Fourier transform GUI application demonstrate ways to generate Fourier transform to an input signal and modify some specifications to make program more flexible to more signals.

The following Matlab project contains the source code and Matlab examples used for inverse laplace transform of transfer function class.
Inverse Laplace Transform Calculator for Transfer Function Classes
Allows taking laplace transform directly by using the transfer function
Coded by N.

The following Matlab project contains the source code and Matlab examples used for 2d poisson equation.
The 2D Poisson equation is solved in an iterative manner (number of iterations is to be specified) on a square 2x2 domain using the standard 5-point stencil. Homogenous neumann boundary conditions have been used.

The following Matlab project contains the source code and Matlab examples used for lagrangian mechanics, 2 points conected with rod.
http://simulations.narod.ru/
there are two masses connected with rod. x y φ describe system state. Lagrangian was made and 6 1st order differential equations to integrate numerically with Euler method.
run zz_2_obj_lagrangian_test.m to see animation or here:
http://www.youtube.com/watch?v=4h1iDNiDbiI

The following Matlab project contains the source code and Matlab examples used for animation of a simple pendulum using the euler cromer numerical method..
For small angles, equation of motion of a simple pendulum as derived from the Newton's second law is a simple ordinary differential equation which can be solved numerically.

The following Matlab project contains the source code and Matlab examples used for numerical methods vs analytical methods for differential equations.
Euler's method, Modified Euler's method and RK4 methods have been used to obtain approximate solutions of the differential equation dy/dx = x *sqrt(y), with y(2)=4 as the Initial condition.

The following matlab project contains the source code and matlab examples used for fast fourier transform.

The following Matlab project contains the source code and Matlab examples used for weeks' method for numerical laplace transform inversion with gpu acceleration.
The numerical inversion of the Laplace transform is a long standing problem due its implicit ill-posedness.

The following Matlab project contains the source code and Matlab examples used for radix 2 fast fourier transform decimation in time frequency.
Source code provided by Nevin Alex Jacob.

The following Matlab project contains the source code and Matlab examples used for sine and cosine integrals on non uniform grid.
See the comments given inside the *.m files. Can be used for a Fourier transform on a non-uniform grid.

The following Matlab project contains the source code and Matlab examples used for computes 1-d fourier transform .
this program computes one dimensional fourier transform of a vector and plot its waveform.

The following Visual Basic project contains the source code and Visual Basic examples used for angle to xy. This code is used for games or other applications where you'll need an corner with an angle.