S.O.S. Mathematics - Sites of Interest on the World Wide Web

Here is a list of some nice sites on the World Wide Web. If you know of a site that should be listed, please let us know....

General Mathematics Sites

  • The Math Forum @ Drexel. This site is worth visiting. The webmasters did a wonderful job in collecting mathematically related material available on the internet.
  • Ask Dr. Math. Any questions?
  • Math Archives. This is a complete site where you may find virtually anything about Math on the Web.
  • Math2.org. Features a variety of tables in diverse areas of math, a message board and a chat room.
  • Eric Weisstein's Math World, now hosted by Wolfram Research. A very nice encyclopedic resource!
  • Britannica.com brings you the complete Encyclopædia Britannica and more. A wonderful resource, not only for Mathematics. [Free "trial".]
  • M@ths en Prép@. L'objectif est de proposer aux élèves des classes préparatoires scientifiques un abrégé du cours de mathématiques, une collection d'exercices et de problèmes corrigés et une introduction à Maple. - Created by Jean-Michel Ferrard.
  • The Mathematical Atlas provides an introduction to the areas of modern mathematics, and points to sources of further information. A very nice site!
  • ExploreLearning is an interactive math and science site with lots of Java applets to experiment with.
  • Earliest Uses of Various Mathematical Symbols These pages show the names of the individuals who first used various common mathematical symbols, and the dates the symbols first appeared. A very nice site!
  • MathNerds provides discovery-based, mathematical guidance via an international, volunteer network of mathematicians.
  • "Cut the Knot" - Interactive Mathematics Miscellany and Puzzles. A great site created by Alexander Bogomolny. Worth a frequent visit!
  • Technical Tutoring (not a tutoring service) has lots of pages on various math subjects.
  • Matthew Pinkney is the author of revision sites for GCSE mathematics students and for students at the Maths AS/A-Level.
  • The MathsInternetGuide features more than 100 links to websites with interactive content designed for grades K-12.

Online Help, Tutoring and Other Services

  • HotMath.com provides detailed solutions for actual math textbook homework problems in many popular textbooks. Covers 6th Grade through Calculus. (free trial)
  • Academy123 offers interactive algebra homework help. Check out an example. (free trial)
  • MyMathTest.com is a free service to help you score well on your college's math placement exam no matter which college you plan to attend.
  • BookByte.com helps you save money on new and used college textbooks.
  • The ExamBot features customizable practice exams for Math and Physics. Check it out!
  • SmarThinking.com is an online tutoring service for college students. (fee based)
  • 1800Student.com is a site, where you can sell your used books or buy any book at reduced price directly from other people. [Link dead 2/1/09.]
  • StuBex.com is a free online book exchange for college students.
  • calc101.com is a nice site where the creator George Beck has done a very good job in helping students get answers to some basic questions from first semester Calculus through WebMathematica. Check it out. Now also available: graphing and matrix manipulations.
  • E-Sylvan offers online-tutoring in Mathematics and other subjects (fee-based).
  • Or try the Interactive Math Tutor offering both online- and phone-tutoring (fee based).
  • MathActive is an internet tutoring service. "We help students, teachers and schools learn and teach mathematics and prepare for standardized math tests." (fee-based)
  • BrainMass.com - 1400+ Master's/PhD experts offer 24/7 instant expert homework help, tutoring, essay writing help, and study guides in over 44 subjects. (fee-based)


Before Calculus: Arithmetic and Algebra

  • Algebra Help - An Algebra resource that "explains a wide range of algebra topics in a simple manner".
  • MATH-abundance, a help site with quite a few topics from upper secondary and lower division undergraduate Mathematics. Maintained by Johan Claeys in Belgium.
  • PlanetQHE is an interactive site designed for high school students interested in chance and probability. Pretty cool!
  • Math.com. A site mostly for middle and high school students.
  • The Flashmaster is a small handheld computer for mastering addition, subtraction, multiplication, and division tables. Used in Sylvan Learning Centers® and by Kaplan Inc.


  • Euclid's Elements, a complete web edition of the most famous Math book of all times, with comments by D.E. Joyce.


Beyond Calculus

  • Phase Portraits for ODEs is a nice JAVA applet which plots phase portraits of solutions to 2-dimensional autonomous systems of differential equations.
  • Internet Differential Equations Activities is "an interdisciplinary effort to provide students and teachers with computer based activities for differential equations in a wide variety of disciplines."
  • The C*ODE*E Home Page. This site features past and current issues of the journal edited by the Consortium for Ordinary Differential Equations Experiments.
  • Analysis Webnotes are lecture notes for a senior level analysis course, written by John Lindsay Orr, University of Nebraska - Lincoln.
  • Computational Physics is a very nice site featuring applied math topics such as ordinary and partial differential equations, matrix methods and simulation algorithms.
  • Download a movie clip of "Galloping Gertie", a.k.a. the Tacoma Narrows Bridge! A nice history of bridge construction over the Tacoma Narrows can be found at a WSDOT website.
  • Edwin H. Connell's Elements of Abstract and Linear Algebra is a foundational textbook on abstract algebra with emphasis on linear algebra. You may download parts of the book or the entire textbook!
  • John Hubbard's article about the forced damped pendulum, which appeared in the American Mathematical Monthly. In PDF format!


Mathematics Software, Computer Algebra Systems and Java Applets

Mathematics Journals on the Web

  • The Plus Magazine is an online mathematics magazine, produced by the Millenium Mathematics Project, based in Cambridge (UK): "Our broad goal is to help people of all ages and abilities share in the excitement of mathematics and understand the enormous range and importance of its applications to science and commerce."
  • Journal Storage. A site featuring a selection of research journals not only in Mathematics. This site is only accessible from computers at participating universities.

Miscellaneous Mathematics Related Sites

Information about Universities and Schools

Science Fair Help

Other Sites

  • Physics Central is a site designed by the American Physical Society and directed at high school and college students interested in everything connected to physics.
  • NinePlanets. This site features "everything under the sun" related to our solar system. Kudos for Bill Arnett for making this available on the web.
  • The official site of the Bureau International des Poids et Mesures, the heart of the International System of Units (SI).
  • Speedguide.net helps you optimize your TCP/IP for high speed Internet connections, such as Cable or DSL.
  • Everything you want to know about Chemical Elements is at www.chemicalelements.com.
  • The Galileo Project. This wonderful project is a hypertext source of information on the life and work of Galileo Galilei (1564-1642) and the science of his time.
  • The American Family Immigration History Center lets you explore your family history at Ellis Island.

This site contains links to other Internet sites. These links are not endorsements of any products or services in such sites, and no information in such site has been endorsed or approved by this site.

Links checked: February 1, 2009.

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