Singular Euler

This block allows the use of aeronautics conventions to express orientation and position of an object in a virtual world.Specifically, the object's orientation can be expressed by means of euler angles and its position by means of X,Y,and H cartesian coordinates.October 2002Giampiero Campa,...

Find the projection of point P in R^n on the ellipsoidE = { x = x0 + U*(z.*radii) : |z| = 1 }, where U is orthogonal matrix of the orientation of E, radii are the axis lengths, and x0 is the center.Or on generalized conic E = { x : x'*A*x + b'*x + c = 0 }.The projection is the minimization...

This code provides a tool to identify a state space model from stochastic signals using a subspace approach.The code is implemented in two steps using a nested function. The first step returns a vector of subspace singular values, from which a user can determine an appropriate order for the state...


Platforms: Matlab

Stokesian Dynamics, a method developed by Brady and Bossis in the 80s, simulate the 3D motion of hydrodynamically interacting spheres at low Reynolds numbers.The present contribution computes the trajectories of hydrodynamically interacting spheres in simple and oscillatory shear flows of a...


Platforms: Matlab

HANKELSV computes controllability and observability grammians Wc, Wo, and the Hankel singular values OUT of an LTI model SYS (created with either TF, ZPK, SS, or FRD). The model SYS can be either continuous-time or discrete-time. However, only in continuous-time case that SYS is allowed to be...


Platforms: Matlab

This simple plugin helps you easily tell the search engine bots the preferred version of a page by specifying the canonical properly within your head tag.Why would you do such a thing? Simply because many black-hat SEO folks abuse duplicate content to gain search ranking and search engine try...


Platforms: PHP

This module for Community Builder 1.2 shows a list of upcoming birthdays from your members. On the birthday the module shows an present icon instead of the days.With tho following parameters you can customize the component:- field birthday ... defines the birthday fieldname from Community...


Platforms: PHP

This module's singular purpose is to redirect users immediately from a splash page (before they see it) when they don't need to see it anymore. It is a pretty small amount of code but I needed to use it on lots of sites. It is designed to work with javascript so the splash page can be fully...


Platforms: PHP

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

The Physicist is a high end physics simulation engine that can provide answers with reasonable accuracies(now w/ rk4 and euler options). It can currently predict the motion of many particles.It Employs OpenGL to provide cutting edge graphics support.


Platforms: *nix

Math::Symbolic::Constant is a Perl module that offers constants in symbolic calculations. SYNOPSIS use Math::Symbolic::Constant; my $const = Math::Symbolic::Constant->new(25); my $zero = Math::Symbolic::Constant->zero(); my $one = Math::Symbolic::Constant->one(); my $euler =...


Platforms: *nix

Assimulo is a Cython/Python based simulation package for solving explicit ordinary differential equations (ODEs) and implicit ordinary differential equations (DAEs). The idea with Assimulo is to create a basis for simulating differential equations and to be easily extended with other solvers....


Platforms: *nix

PDFCombine is a command line utility that allows you to combine multiple PDF files into one singular PDF file.


Platforms: Mac

A free next-generation meta search tool that saves time and finds better results. It gathers results from the web and then analyzes them with a cutting edge method called Latent Semantic Analysis. It saves time by putting related search results together into conceptual groups. It finds better...


Platforms: Windows

Anemones Reef is a spectacular animated screensaver that submerges you into the marine depths, and invites you to live with fascinating anemones.Anemones grow stuck to rocks. They are very large and attractive, possesing a beauty that`s difficult to equal. They move slowly, as if they want to...


Platforms: Windows

The name of this wallpaper, Wolf in the light of the Moon, says everything. A lovely image of a majestic, distinguished albino wolf relaxing under the powerful influence of an immense full moon, full of tranquility and elegance.A different way to contemplate one of the most beautiful and singular...


Platforms: Windows

The wolf has always been an animal that arouses suspicion in humans. Its howling and its solitary ways are usually scenes of fear, but the reality is that it is the origin of the domestic dog, and serious danger of extinction.In this illustration you can see the better side, one of epic and...


Platforms: Windows

When you go to watch a sporting event, indoors or out, you always try and choose a seat where you can get the best views. Dozens of rows of seats that are perfectly numbered to choose from and enjoy your favourite sport without missing anything. This peculiar panorama is represented in this...


Platforms: Windows

PDL::GSL::INTEG is a PDL interface to numerical integration routines in GSL. This is an interface to the numerical integration package present in the GNU Scientific Library, which is an implementation of QUADPACK. Functions are named gslinteg_{algorithm} where {algorithm} is the QUADPACK...


Platforms: *nix

PDL::MatrixOps Perl module contains some useful Matrix operations. SYNOPSIS $inv = $a->inv; $det = $a->det; ($lu,$perm,$par) = $a->lu_decomp; $x = lu_backsub($lu,$perm,$b); # solve $a x $x = $b PDL::MatrixOps is PDLs built-in matrix manipulation code. It contains utilities for many...


Platforms: *nix