Cartesian Plane Quadrant

[xs,ys] = cint(x1,y1,x2,y2) finds intersection points of the curves defined by straight lines between the length(x1) points in the plane, (x1,y1), and the length(x2) points in the plane (x2,y2).The function essentially solvesx1(m) + t*diff(x1)(m) = x2(n) + s*diff(x2)(n);y1(m) + t*diff(y1)(m) =...

The program is an ordinary m-filethe matrix g(*,*) can be used to punch in the metric values in terms of symbolic variables x1,x2,x3,x4(co-ordinate axes)The program first computes the Affine connection(Christoffel symbols) stored in Gamma matricesThese are then used to construct and solvegeodesic...

Generally, in finite element models degree-of-freedom of all nodes be equals. But, a Heterosis finite element model has each of the corners are assumed to possess three degree-of-freedom (one displacement two rotation w,Qxx,Qyy) and centroidal node has two degree-of-freedom (two rotation...


Platforms: Matlab

Conversion routines to take a surface (a function z of (x,y) or (theta,r)) and convert this into a solid; much as meshz does, but a little more useful for outputting as an STL for frabrication in a 3D printer. There are two cases, one in Cartesian co-ordinates, and the other in polar...


Platforms: Matlab

The function will returns the text string of length SIZ embedded in the Bth bit-plane of the image I.


Platforms: Matlab

It is Time Reversal simulation in Matlab. Black circle is obstacle. Trialgle is detected obstacle position, red points is transmitters/receivers. It is 2d wave equation solution. Borders absorbs waves but not ideally so small reflection from borders exist. The waves are reflected from obstacle....


Platforms: Matlab

Plots the contours of a function defined on an unstructured triangular grid directly, without the need to interpolate back onto a Cartesian array.I have attempted to replicate much of the functionality of the regular "contour" function.Type "help tricontour"Type "contourdemo" for some examplesYou...


Platforms: Matlab

In 1975, Vincenty published a rapidly converging algorithm for computing the distance between points on an ellipsoidal earth. The algorithm is precise to within a few millimeters. Since then, his algorithm has since seen significant implementation in geodesy and engineering. After adjusting the...


Platforms: PHP

This applet lets you study light polarization and its reflection and refraction in isotropic media. It shows how to obtain the different polarization states of light from the superposition of two plane waves and it studies Fresnel coefficients for an incident wave on a surface separating two...


Platforms: Mac

The GR Kerr Light program simulates the path of light in the equatorial plane near a rotating black hole using the Kerr metric. It is distributed as a ready-to-run (compiled) Java archive. Double clicking the gr_kerr_light.jar file will run the program if Java is installed. The default setting is...


Platforms: Mac

The GR Kerr Stone program simulates orbits of an object in the equatorial plane near a rotating black hole using the Kerr metric. It is distributed as a ready-to-run (compiled) Java archive. Double clicking the gr_kerr_stone.jar file will run the program if Java is installed. The default is an...


Platforms: Mac

This Spheres of Eudoxus model simulates the system devised by the Ancient Greek astronomer Eudoxus to model the motion of the planets. The model consists of four nested concentric spheres. The axis of each sphere is attached to the surface of the next sphere out. The planet itself is located on...


Platforms: Mac

Jump out of a C-130 and land in a field. Requires Java SE 1.5 runtime. * Press CTRL key for a new game * Press CTRL to jump from plane when over target * Press CTRL to open chute * Open your chute as low as possible for more bonus points * If you attempt to open your chute too low it will...


Platforms: Mac

Pax Britannica is a one-button real-time strategy game by No Fun Games. Up to four players battle it out underwater, struggling to be the last one standing! How to Play The A, F, H, and L keys control the four players, and the escape key quits. Gamepads are also supported, although not on OS...


Platforms: Mac

The Voronoi Game is a simple geometric model for the competitive facility location. Competitive facility location studies the placement of sites by competing market players. The geometric concepts are combined with game theory arguments to study if there exists any winning strategy. The Voronoi...


Platforms: Mac

Easy-to-use 3D grapher that plots high quality graphs for 2D and 3D functions and coordinates tables. Graphing equations is as easy as typing them down. Graphs are beautifully rendered with gradual colors and lighting and reflection effects. Both cartesian and polar coordinates are supported as...


Platforms: *nix, Java, Linux Console, Linux Open Source, Linux Gnome

Math::Geometry is a Perl module that implements classic geometry methods. It should be considered alpha software and any feedback at all is greatly appreciated. The following methods are available: vector_product. Also known as the cross product, given two vectors in Geometry space, the...


Platforms: *nix

The clickndrag module introduces the "Plane" class which extends PyGame's "Surface" functionality, offering a hierarchy of mouse-sensitive, draggable Surfaces that can be used as sprites, windows, icons or other interactive elements.


Platforms: *nix

The offline browser is a personal proxy server sitting behind your regular browser (Firefox, IE, Safari, Opera - whatever!), silently and speedily handling all the network traffic. Unlike most offline browsers with this concept, you don't have to specifically tell WebAssistant to capture a...


Platforms: Windows, Mac, *nix, Windows 7, Java

AMPHIOTIK ENHANCER PR (PRofessional edition), for Winamp, is a powerful 3D-Audio system, for professionals, which processes standard stereo audio and converts it into an enhanced, rich 3D stereo output, increasing dramatically the listening experience. In the PRofessional edition, you can place...


Platforms: Windows