Group items tagged

Describing the way phone numbers is North America are coded

Area codes used to be much more restrictive. How many area codes were possible before 1995? After 1995?

This is really cool. A brief exposure to how computers are able to play chess.

Far More Than You Ever Wanted To Know about where this formula comes from.

Stirling's approximation is for n! in terms of continuous functions.

The derivation didn't require any complex analysis after all; thank goodness.

In case you wanted to know a more precise way to deal with all of the factorials we've been playing around with.

If you like Erdos, you should take Algebra with Joel Spencer. He collaborated with Erdos for 40 or more publications I think.

Some interesting problems from one of my favorite mathematicians.

Walk-through videos about some basic topics of probability. Scroll down on the right side to 'Probability ' to view the videos of that category

Taking Bridge to another level

explanation of the different positions in basketball. How many ways can a team be created from the same five players?

How many ways can you order a cheesesteak if you can get it with or without onions and with provolone cheese, American cheese, or Cheez Whiz?

A famous purveyor of the Philadelphia "Cheesesteak" sandwich

Unless you're really interested in all the pictures of license plates, scroll down to "County coding" to see the mathematically relevant part. Ask yourself: how many license plates can be generating in the scheme used from 1963 to 2008? How many can be generated in the new scheme?

A gallery of Indiana license plates and description of the various coding schemes used.