Chebyshev
Chebyshev application allows someone to set up a spam filtering email forwarding service. Chebyshev is an engine for an email forwarding service similar to those "bitdiddle@alum.college.edu" email forwarding services that some schools provide. Combine email forwarding with spam filtering, and...
Platforms: *nix
License: Freeware | Size: 14.34 KB | Download (95): Chebyshev Download |
Given a Legendre polynomial expansion where the coefficients are stored in a column vector, this script computes the expansion in terms of Chebyshev polynomials. Useful for spectral methods.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (42): Legendre to Chebyshev conversion Download |
Given a Chebyshev polynomial expansion where the coefficients are stored in a column vector, this script computes the expansion in terms of Legendre polynomials. Useful for spectral methods.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (48): Chebyshev to Legendre conversion Download |
This is a very fast and efficient script for nodal-to/from-spectral transforms using chebyshev polynomials on the unit square domain. This version does not require 2^n truncation, but does require the same truncation in both dimension. Users are encouraged to improve and redistribute this script.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (46): 2D Chebyshev Transform Download |
You can use 4 types of filters:- Butterworth- Chebyshev 1- Chebyshev 2- EllipticYou can use them as:- Lowpass- Highpass- Bandpass- StopbandShowing theirs features in frequency, phase and the z plane. After the desing phase you can apply the designed filter in real time to incoming audio signal...
Platforms: Matlab
License: Freeware | Size: 296.96 KB | Download (42): Real time filters: GUI Download |
NGRAV computes the normal gravity value (in m/sec^2 unit) of a point with the geodetic latitude defined in GRS80 ellipsoid,which is the more up-to-date and internationally adopted reference ellipsoid.The normal gravity value is used for the computation of the gravity anomaly which removes the...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): Normal gravity value using Somigliana's formula Download |
This toolbox contains a collection of m-files which may be used to numerically solve discretized ODE/PDEs on a Chebyshev grid. Included are scripts for building differentiation matrices, enforcing boundary conditions using either the Laczos Tau method or Galerkin basis functions, spectral...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 20.48 KB | Download (39): ChebyshevTools Download |
Low-pass filters allow the low frequency components of an input signal to pass through while attenuating (reducing) high frequency components. Measurement noise fall into the high frequency range of the signal spectrum, while the underlying process signal usually lies towards the low frequency...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 71.68 KB | Download (45): Noise Reduction GUI using Low Pass Filter Download |
The package LiScEig calculates a finit number of numerical eigenvalues and eigenfunctions of regular Sturm-Liouville problems using the Chebyshev-tau method.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 163.84 KB | Download (42): LiScEi Download |
solvePoissonSOR.m is an efficient, lightweight function that solves the Poisson equation using Successive Overrelaxation (SOR) with Chebyshev acceleration to speed-up convergence. Dirichlet boundary conditions are used to provide a unique solution.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (45): Fast Possion equation solver Download |
Channelflow is a direct numerical simulator for incompressible Navier-Stokes channel flow, written in C++. Channelflow application simulates fluid flow in a rectangular box, with no-slip boundary conditions on the upper and lower surfaces of the box, and periodic boundary conditions in the...
Platforms: *nix
License: Freeware | Size: 440.32 KB | Download (98): Channelflow Download |
openModeller library is a spatial distribution modelling library, providing a uniform method for modelling distribution patterns using a variety of modelling algorithms. openModeller can be used via programatic interfaces, including SOAP and SWIG-python, as well as via a user friendly desktop...
Platforms: *nix
License: Freeware | Download (90): openModeller Download |
Functions are described briefly below:1) er_add: Add given tranfer functions.2) er_blaschke: Perform desired frequency transformation of digital filter using Blaschke products.3) er_conv: Multiply transfer functions.4) er_fconv: Convolve transfer functions in frequency domain.5) er_firlsinv: Find...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (39): Comprehensive DSP Toolbox Download |
This script simulates the time evolution of a quantum mechanical wavepacket on the unit square with Dirichlet boundary conditions. Spatial discretization is with a Chebyshev-tau spectral method and time discretization is with a second order Crank-Nicholson method.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (43): 2D Wavepacket Time Evolution Download |
The MATLAB package Chebpack solves specific problems for differential or integral equations. It is organized in four modules, corresponding to four levels of complexity. Each level has an associated set of particular examples. The package is based on the Chebyshev tau spectral method applied in...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 307.2 KB | Download (39): Chebpack Download |
mpmath is a replacement for Python's float/complex types and math/cmath modules with unlimited precision and exponent sizes. The mpmath software is written entirely in Python without any external dependencies and hence runs almost anywhere, without the need for compilation. To install, unpack...
Platforms: Mac
License: Freeware | Size: 460.8 KB | Download (45): Mpmath Download |
Building on the work of cherished luminaries such as Sophocles Orfanidis, Andreas Antoniou, Martin Holters, and Udo Zolzer, this library harnesses the power of C++ templates to solve a useful problem in digital signal processing: the realization of multichannel IIR filters of arbitrary order and...
Platforms: Mac
License: Shareware | Cost: $0.00 USD | Size: 24.61 MB | Download (39): DSP Filters Download |
EJS Special Functions Model shows how to access special functions in the OSP numerics package. The simulation displays a graph of the special function over the given range as well as the value of the selected function at a single point. The following special functions can be displayed: +...
Platforms: Mac
License: Shareware | Cost: $0.00 USD | Size: 1.37 MB | Download (38): Special Functions Model Download |