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8 results for tags geometry x
  • Vincenty's formulae - Wikipedia, the free encyclopedia
    Vincenty's formulae are two related iterative methods used in geodesy to calculate the distance between two points on the surface of a spheroid, developed by Thaddeus Vincenty (1975a) They are based on the assumption that the figure of the Earth is an oblate spheroid, and hence are more accurate than methods such as great-circle distance which assume a spherical Earth.

    The first (direct) method computes the location of a point which is a given distance and azimuth (direction) from another point. The second (inverse) method computes the geographical distance and azimuth between two given points. They have been widely used in geodesy because they are accurate to within 0.5 mm (0.020″) on the Earth ellipsoid.
    Wed Jan 20 18:41:42 2016 - permalink -
    - https://en.wikipedia.org/wiki/Vincenty%27s_formulae
    geometry mathematics TODO
  • SourceForge.net: SaVi satellite constellation visualizer
    SaVi - satellite constellation visualization. Simulate Iridium, Globalstar, Sirius, GPS, Teledesic and other systems, modify them, or design your own. Uses Tcl/Tk and Unix libraries; 3D viewing option requires Geomview running on X Window. BSD license.
    Wed Jun 3 17:36:09 2009 - permalink -
    - http://sourceforge.net/projects/savi
    BSD FOSS geometry GPS physics satellite software Unix X11
  • The official NGS GEOID Page
    Geoid models.
    Thu Sep 11 17:17:28 2008 - permalink -
    - http://www.ngs.noaa.gov/GEOID/
    earth-observation geometry physics TODO
  • Solve Rubik's Cube with Cube Explorer
    Program to solve Rubik's cube, source code in C and background information.
    Tue Feb 19 19:27:18 2008 - permalink -
    - http://kociemba.org/cube.htm
    geometry mathematics programming software
  • Map Projections: Conformal Projections
    A nice collection of unusal world maps.
    Fri May 11 14:10:44 2007 - permalink -
    - http://www.progonos.com/furuti/MapProj/Normal/ProjConf/projConf.html
    geometry map mathematics
  • atlc - Arbitrary Transmission Line Calculator (including directional couplers)
    A free (GPL) program to compute impedances and coupling factors of transmission lines with fairly complex geometries.
    Tue Feb 20 16:42:42 2007 - permalink -
    - http://atlc.sourceforge.net/
    electronics geometry GPL line physics tool transmission
  • The Croquet Project
    screenshots from Croquet, an amazing visualization environment based on Squeak Smalltalk.
    On 2023-05-23, the page no longer exists.
    Fri Sep 8 16:23:46 2006 - permalink -
    - http://www.opencroquet.org/about_croquet/screenshots.html
    geometry graphical-programming smalltalk software squeak
  • surf - visualize algebraic curves and surfaces
    surf is a tool to visualize some real algebraic geometry: plane algebraic curves, algebraic surfaces and hyperplane sections of surfaces. surf is script driven and has (optionally) a nifty GUI using the Gtk widget set.
    Fri Aug 4 12:37:26 2006 - permalink -
    - http://surf.sourceforge.net/index.shtml
    geometry GPL mathematics
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