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27 April 1998 Vol. 3, No. 17 THE MATH FORUM INTERNET NEWS Sketchpad Tessellations | HQC Computing Library | Imaging the Imagined GEOMETER'S SKETCHPAD TESSELLATION TUTORIAL - Cathi Sanders In the spirit of Suzanne Alejandre's Tessellation Tutorials, Cathi gives step-by-step directions for using the Geometer's Sketchpad to make original tessellations, and provides a tutorial sketch to download: http://mathforum.org/sum95/suzanne/tess.gsp.tutorial.html Tessellations by Cathi's students at Punahou School in Honolulu, Hawaii are on the Web, together with comments they have written about their work: http://mathforum.org/sum95/suzanne/hawaii.html For fun, try manipulating a JavaSketchpad tessellation, from the Forum, or download more sketches: http://mathforum.org/~sarah/java.gsp/tess1.gsp.html If you don't have the Geometer's Sketchpad, you can download a demo version from the Math Forum: http://mathforum.org/dynamic.html Cathi Sanders teaches a portfolio class in high school geometry at Punahou School in Honolulu, Hawaii, and an E-School interactive electronic geometry class funded through the Hawaii Department of Education. She has a particular interest in projects that interweave geometry, art, and design. -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- HQC's SCIENCE ONLINE SOLUTION LIBRARY http://soli.inav.net/~hqcom/hqcscieng/math/math.html The HQC SciEng Online Solution Library contains interactive science and engineering solution tools that can be used to compute geometry, basic math functions, series, linear algebraic equations, nonlinear equations, interpolating, curve fitting or regression, integration, differentiation, differential equations, statistics, graphic plotting, data visualization, and more. Contents include: 1. Geometrical Computation 2. Basic Mathematical Computation 3. Vector Computation 4. Matrix Computation 5. Complex Computation 6. Special Functions 7. Calculators 8. Series 9. Conversion 10. Linear Algebraic Equations 11. Nonlinear Equations 12. Eigenvalue and Eigenvectors 13. Interpolating 14. Curve Fitting and Regression 15. Numerical Differentiation 16. Numerical Integration 17. Ordinary Differential Equations (ODE) 18. Partial Differential Equations (PDE) 19. Statistics 20. Function Plotting You can also download this shareware library and integrate it into your internet or intranet system. -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- MATH AWARENESS WEEK 1998 IS HERE 26 April - 2 May Mathematics and Imaging http://mathforum.org/maw/ IMAGING THE IMAGINED - Paul Flavin http://www.frontiernet.net/~imaging/contents.html "Raytracing tips from da Vinci and me" The art and science of modeling: rendering imagined worlds with math and a keyboard. - Platonic Solids and Polyhedra - 'Tensegrity' (tension) structures - A gentle introduction to raytracing - The Quadric surfaces - A tiny Object library: tanks to teapots - Venus de Milo and Java Applets featuring Virtual Reality: Modeling with Math, and a little Java; toying with reality and working on games (games, graphs, geometry, Calculus). http://www.frontiernet.net/~imaging/java_vrml.html -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- CHECK OUT OUR WEB SITE: The Math Forum http://mathforum.org/ Ask Dr. Math http://mathforum.org/dr.math/ Problems of the Week http://mathforum.org/students/ Internet Resources http://mathforum.org/~steve/ Join the Math Forum http://mathforum.org/join.forum.html Send comments to the Math Forum Internet Newsletter editors _o \o_ __| \ / |__ o _ o/ \o/ __|- __/ \__/o \o | o/ o/__/ /\ /| | \ \ / \ / \ /o\ / \ / \ / | / \ / \ |

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