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

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

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

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

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

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

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

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