Cut The Knot – Lots of problems and puzzles, and excellent applets demonstrating geometry theorems.

Nick’s Mathematical Puzzles – A huge collection of puzzles, categorized by difficulty.

Jim Loy’s Mathematics Page – Several articles about mathematics, written by a polymath.

Ask Dr. Math from The Math Forum – Students write to this site for help with problems ranging from routine homework exercises to classic puzzles; browsing the responses is a good way to find interesting problems.

xkcd – “A webcomic of romance, sarcasm, math, and language.”

Vi Hart – Mathematical Doodling – She’s the Martin Gardner of the Internet Age.

D.E. Joyce’s interactive guide to Euclid’s Elements – Euclid’s Elements is a text that cries out for hyperlinks.  Helpful applets here, too.

Visual Reimann sum, trapezoidal rule, and Simpson’s rule calculator – Shows you the visual and crunches the numbers.


  1. Posted July 20, 2013 at 3:23 am | Permalink | Reply

    Horizontal Siding and Vertical Sliding refers to the outer layer
    of a wall, with shingles or boards or gaps subtly angled to shed water.
    It’s easy to use a fake IP address on i – Phone and i – Pad, but you need to know what you need the fake IP for. Net’s builder has been out for a little more than a year, yet it already helped
    more than 5,000 webmasters to create their online forms.

  2. Posted July 21, 2013 at 1:02 am | Permalink | Reply

    После прохождения теста специальности, заявитель получит ASE сертификации .
    Проверить, если вы найдете ни накладных расходов,
    если да, чем задать свой автосервис Механик
    предложить данные о накладных расходов, поскольку они могут быть включены, чтобы добавить некоторые несправедливые долларов к общей .

    Владельцы автомобилей должны учитывать определенные факторы с точки зрения заиграть или осмотры .

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

%d bloggers like this: