![]() ![]() These are a few files that were created to model the tools included in the Perspective_Tools file.ģD_Chaos_Game - This last one is not mine. This is actually a file from the perspective series, but all of the geometric construction has been hidden in order to create a more useful physics demonstration. ![]() The three dimensions are shown in perspective view. Maxwell2 - Maxwells equation relating electric and magnetic waves is shown with a model of both waves travelling along the same axis and changing in orthogonal directions. Interference - Youngs slit experiments for light wave interference are simulated. It also has a geometric representation of a voltage calculation and two movable equipotential curves. Watch the effects on the field when the charges and positions of the points are changed. Physicsĭoppler - An animated sketch models the Doppler effect and sonic booms.Į-field - Point charges create an electric field. A point representing an initial condition can be dragged across the field and the curve through that point is drawn. In this sketch, the size and density of the field can be changed. A curve can be approximated by simply drawing along the grain. Slope_field - This is something that gets a lot of use in differential equations classes. Integral - Several concepts are modeled here, including Riemann Sums, Simpsons Rule, and the antiderivative. If you are using the file for that purpose, let me recommend that you change most of the line weights to medium or thick. Many of these sketches (particularly the physics files) are suitable for classroom demonstrations. ![]() This will degrade the resolution of the curve, but it will also allow the animation to run faster. Select any loci you see on the screen (including graphs). If your computer is not driving the animation fast enough, try this fix. It has been brought to my attention that many of my animated sketches are unreasonably slow because I tend to set the locus samples very high. The GSP4 files seem to be behaving well in GSP5, the current software version, so most of them have been retained without changing the format. Here are some more that are not attached to any particular lesson. ![]() Published August, 2003 © 2003 by Michael E.Many of the Whistler Alley Mathematics topics include Geometers Sketchpad files. See the first paragraph of the Introduction for information about acquiring it. However, to view source code for Sketchpad examples or to create your own examples, you do need this product. You do not need to own The Geometer's Sketchpad® to read this article.You can download the current version (free) from Sun Microsystems. All of the applets have been tested and work with Version 1.4.2 of the Java Runtime Environment, Standard Edition, in Internet Explorer, Netscape, and Mozilla. If your browser has an old version of the Java plug-in, you may need to download and install a current version in order to run some of the applets in this article.Other permissions or rights to JavaSketchpad require a written agreement letter from Key Curriculum Press contact Key Curriculum Press for more info. Key Curriculum Press grants the right to freely use JavaSketchpad applets in your own Web pages, provided you do so for non-commercial use only. JavaSketchpad is a stand-alone product that can be used independently of The Geometer's Sketchpad. The figures at the right show how similar the results are. Which specify the initial placement of three points and three lines. Inspect the HTML code of Triangle.htm, and you will see the meat of the construction in the lines Whether you have Sketchpad installed or not, you can click here to open the JavaSketchpad version. If you have Sketchpad installed on your computer, you can click here to open a gsp sketch of a generic triangle. The sketch as saved in HTML looks like an old fashioned (pre-Version 4) gsp script, with calls to class files provided in the /jsp folder via parameter passing.Įverybody draws a triangle as their first Sketchpad sketch. Instead, you can build a sketch in The Geometer's Sketchpad Version 4 and save it in HTML format. Michael Mays is in the Department of Mathematics at West Virginia University.Īlthough JavaSketchpad requires a Java-enabled browser to view the sketches, you do not have to program in Java to create them. Besides the downloadable software, the Key Curriculum site has detailed information about creating JavaSketchpad applets and a gallery of examples to explore. The JavaSketchpad Developer Release 4 is integrated into Sketchpad version 4, or it can be downloaded independently from Key Curriculum Press. JavaSketchpad is software that facilitates development and distribution of mathlets by publishing sketches from The Geometer's Sketchpad® on the Internet. The Geometer's Sketchpad® is a Dynamic Geometry® exploration environment available for Macintosh® and PC computers from Key Curriculum Press. ![]()
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