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97-120 of 126 results for Materials Submitted by James Rutledge

The Wolfram Demonstrations Project is an open-code resource that uses dynamic computation to illuminate concepts in... see more

The Wolfram Demonstrations Project--Calculus is an open-code resource that uses dynamic computation to illuminate... see more

CensusScope is an easy-to-use tool for investigating U.S. demographic trends, brought to you by the Social Science Data... see more

A brief description of the Chinese abacus and instructions on how to perform the operations of addition, subtraction and... see more

An extensive set of first-year calculus notes generated by latex2html.

This site provides a tutorial on financial credit scores and credit reports. It also provides links to a few financial... see more

This site contains a tutorial on investing basics. It covers general information as well as information on investing in... see more

A collection of algebra lessons and related applications to enhance student motivation for learning.

This site is a gallery of fractal images of various types and includes MIDI Fractal background music and a Fractal of the... see more

U.S. Census data has been made more accessible and easier to read, combining features of both charts and tables in a way... see more

This site provides an extensive and cross-linked chronology of the value of pi, including recent computer-based... see more

This site provides a photo of the enigmatic Kryptos Sculpture at the CIA Headquarters in Washington, D.C., as well as a... see more

This site is primarily concerned with the search for the latest Mersenne primes but it also contains other information... see more

The Astronomical Applications Department of the U.S. Naval Observatory provides information and data services on a range... see more

The RSA public-key cryptosystem is described here along with encryption and digital signatures. This is part of a larger... see more

This site offers thumbnail depictions of hundreds of tessellations categoized by both artist and subject. 

These pages give an introduction to substitution ciphers and then go on to explain exactly how the Enigma machine worked... see more

This site describes the Maya calendar and the Maya Mathematics

General information on the Platonic solids.

This site provides information on the CIA's enigmatic sculpture known as "Kryptos", its background, development, history... see more

 The USA Mathematical Talent Search (USAMTS) is a free mathematics competition open to all United States middle and high... see more

The electronic bookshelf contains a number of materials that feature an interdisciplinary approach to a mathematical... see more

A collection of Java-applet puzzles at two different ability levels for elementary school children.

An extensive collection of elementary and middle school resources including curriculum materials, interactive materials,... see more