
 Geometry Calculators 
  Java Gallery of Interactive Geometry  A number of geometry Java applets  hyperbolic triangles, simulation of the Lorenz equations, interation of a quadratic map, a version of the Tetris game, Leap fractal chaos game, creating and animating fractals, generate wallpaper patterns. 
  Circle, Sphere and Cylinder Calculator  Calculate the circumference and area of a circle, the surface area and volume of a sphere, and surface areas and volume of a cylinder. 
  Geometry  A geometry text covering points, lines, planes, angles, postulates and theorems, unions and intersections, formulas, constructions, etc. Contains sample problems and a comprehensive glossary. 
 www.ifigure.com /math/geometry/geometry.htm (494 words) 
