Cartesian

MOPlot is a handy visualization application specially designed for fast molecular orbitals plotting from the outputs of the Gaussian 03/98/94, Molcas, Gamess/US quantum chemical calculation packages. This Molecular Orbital Plotting Program will prove to be easy-to-use and very efficient. MOPlot... Platforms: Windows, XP

Special Effects is a simple application designed using Java that allows you to add special optical effects. You can add effects like seeing through glass sphere, water droplets or swirl effect with varying degree of radial changes. You can also create 3-D perspective effects with the images,... Platforms: Windows

Calc 3D is a collection of mathematical tools for highschool and university. The calculator can do statistics, best fits, function plotting, integration. It handles vectors, matrices, complex numbers, coordinates, regular polygons and intersections. For objects ( like point, line, plane and... Platforms: Windows

Reverse Snowflake Joins (abbreviated as revj) is a tool to understand SQL and document SQL queries. This is especially good for maintaining big queries written by somebody else. "Big SQL" can be as many as 20 tables, joined by multiple fields. Platforms: Mac

MacMolPlt is a Chemistry visualization tool that can be used to build molecules with an integrated graphical model builder, create input files for the GAMESS computational chemistry program, and then visualize the results of computational chemistry runs. Features include a high-quality 3D... 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. Both cartesian and polar coordinates are supported as well as parametric equations and inequalities. Graphs are beautifully rendered with... Platforms: Mac

This script shows a way to generate a list of all strings (in this case, string=list of symbols) of a given alphabet having a specified length by using list comprehensions. Strings (not the 'string' type) are frequently used in computer science; for example numbers are encoded as strings of... Platforms: Windows, Mac, *nix, Python, BSD Solaris

The function assumes the WGS84 model.Latitude is customary geodetic (not geocentric).Inputs may be scalars, vectors, or matrices of the same size and shape. Outputs will have that same size and shape.Usage[lat,lon,alt] = ecef2lla(x,y,z)lat = geodetic latitude (radians)lon = longitude (radians)alt... Platforms: Windows, Mac, *nix, Matlab, Solaris

This open source, digitizing software converts an image file showing a graph or map, into numbers. The image file can come from a scanner, digital camera or screenshot. The numbers can be read on the screen, and written or copied to a spreadsheet. The process starts with an image file containing... Platforms: Windows, Mac, *nix, C/C++, BSD

SHPATH - shortest path with obstacle avoidance (ver 1.3) Given a "terrain" matrix consisting of zeros (for open space) and ones (for obstacles), this function computes the shortest path between two specified points while avoiding obstacles.A two-stage solution is employed. In stage one, the... Platforms: Matlab

A collection of geodetic functions that solve a variety of problems in geodesy. Supports a wide range of common and user-defined reference ellipsoids. Most functions are vectorized. Functions include:Angle Conversions deg2rad - Degrees to radians dms2deg - Degrees,minutes,seconds to degrees... Platforms: Matlab

C-Library & Matlab Toolbox implement a numerical solution of Poisson equationdiv(e*grad(u))=fin Cartesizan 3D coordinates with respect to steeply varying dielectrical permittivity e. Library uses regular rectangular grid with mixed boundary conditions, FVM-based equation discretization and... Platforms: Matlab

Programs and utility functions using the Symbolic Math Toolbox are provided to analyze vectors and tensors in general curvilinear coordinates. The programs perform the following functions: 1) runcoord plots intersecting coordinate surfaces for typical coordinate systems 2) runmetric computes and... Platforms: Matlab

Dynamical analyses in engineering often require inertial properties of complex shapes such as polyhedra. The volume, the first moment of volume and the second moment of volume of a general solid can be computed by V = Integral( dVol ), VR = Integral( R*dVol ), VRR = Integral( R*Rd-deOao*dVol ).... Platforms: Matlab

moonpos calculates the moon position using the method in the bookAstronomical Algorithms by Jean Meeus, Chapter 45, pp 307 - 313. Thealgorithm used is accurate to about 10 arcsec in longitude and 4 arcsecin latitude according to the book, although the time range is notmentioned. The periodic... Platforms: Matlab

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,... Platforms: Matlab

This function is a substitute for the standard versions of quiver and quiverm available using a vanilla release of matlab. This version assumes a 2D vector field is being plotted using a gridded flow field from a numerical model. It is primarily intended for Earth System Model analysis.The... Platforms: Matlab

A set of functions to calculate coordinate transformations between different reference ellipsoids and different projections, including tools on:- transformation from cartesian to geographic coordinates and back- transformation from geographic coordinates to transverse mercator mapping or lambert... Platforms: Matlab

JGraphSketch is an Open Source cross-platform mathematical function plotter written in Java. You can plot Cartesian, Polar and Parametric equations with it. Here is a screen shot. You can zoom the graph, save it in a PNG file and customize each and every plot settings. The software is very... Platforms: Mac

GeographicLib is a small set of C++ classes for performing conversions between geographic, UTM, UPS, MGRS, geocentric, and local cartesian coordinates, for gravity (e.g., EGM2008), geoid height, and geomagnetic field (e.g., WMM2010) calculations, and for solving geodesic problems. It is a... Platforms: *nix