If you've wondered why we haven't posted anything here in awhile, it's because we've been working feverishly on our new book, Bet Smart: The Kelly System for Gambling and Investing. We've finally finished it, and it should be available at Amazon by the end of the month.

At QuantWolf, we've added simulation and plotting features to our calculator for the Kelly fraction of a single bet/investment that can have any number of possible returns.

At QuantWolf, we've put up a calculator for the Kelly fraction of a single bet/investment that can have any number of possible returns.

Our book How to Build a Proton Precession Magnetometer is now also available in Bulgaria, and Romania.

At QuantWolf, we've put up a calculator for playing multiple coin toss bets simultaneously.

At QuantWolf, our coin toss simulator for fixed fraction betting now plots its results.

At QuantWolf, we've put up a coin toss simulator for fixed fraction betting.

Our book How to Build a Proton Precession Magnetometer is now also available in Estonia, the Netherlands, South Africa, and Sweden.

At QuantWolf, Stefan has written An Introduction to Bonds.

At QuantWolf, we've put up a calculator for the yield to maturity of a bond.

At QuantWolf, we've put up calculators for the maximum acceptable default probability for a risky bond, and the required yield on a risky bond given its default probability.

We've also put up a Kelly fraction calculator for stock and bond investment.

At QuantWolf, we've put up a calculator for the Kelly fraction in a general binary bet.

At QuantWolf, we've put up a calculator for the Kelly fraction in a coin toss bet.

Our book How to Build a Proton Precession Magnetometer is now also available in Japan.

Our book How to Build a Proton Precession Magnetometer is now also available in Australia, Canada, and Italia.

As a very unusual application of the Kelly criterion, we have done an analysis of the Powerball lottery at QuantWolf.

Our book How to Build a Proton Precession Magnetometer is now also available in the United Kingdom, and Deutschland, as well as the United States.

Our book How to Build a Proton Precession Magnetometer is now shipping.

A rough draft of a chapter of a book we are writing, Bet Smart: The Kelly System for Gambling and Investing is available at QuantWolf.

Our book How to Build a Proton Precession Magnetometer has been sent to the printer. It can now be pre-ordered, and should be available by the end of the month.

Chapter 7 of How to Build a Proton Precession Magnetometer is now finished.

Chapter 6 of How to Build a Proton Precession Magnetometer is now finished.

Chapter 5 of How to Build a Proton Precession Magnetometer is now finished.

Just submitted a new post to our TinyBitsofColor blog, titled Histogram equalization of photos.

Chapter 4 of How to Build a Proton Precession Magnetometer is now finished.

Just submitted a new post to our TinyBitsofColor blog, titled How to lighten a photo in GIMP.

Chapter 3 of How to Build a Proton Precession Magnetometer is now finished.

More content has been added to our page on lattice paths.

We have a new page on lattice paths.

Just submitted a new post to our TinyBitsofColor blog, titled A Gift Wish List for Image Processing and Photography Enthusiasts (Part 2).

Just submitted a new post to our TinyBitsofColor blog, titled A Gift Wish List for Image Processing and Photography Enthusiasts (Part 1).

We have a new page on rational approximations of elliptic integrals.

Just submitted a new post to our TinyBitsofColor blog, titled An Unbeatable CAPTCHA System?.

A test data generator program, for producing a noisy sum of sampled sine waves has been posted on our Signal Processing page.

New recursive digital filter software has been posted on our Signal Processing page.

Just submitted a new post to our TinyBitsofColor blog, titled The Future of Content-Based Image Retrieval (CBIR).

The second chapter of How to Build a Proton Precession Magnetometer is now available.

Just submitted a new post to our TinyBitsofColor blog, titled Content-Based Image Retrieval (CBIR) Search Engines.

The first chapter of How to Build a Proton Precession Magnetometer is now available.

Just submitted a new post to our TinyBitsofColor blog, titled Annotation-Based Image Retrieval Search Engines.

Just submitted a new post to our TinyBitsofColor blog, titled Methods for Image Search.

We have a new website and blog devoted to image processing called tinybitsofcolor.com (an obvious reference to pixels). We have in recent years developed some mathematical techniques that can be used in various image processing applications (see our patent news release for one such application). Some of these applications will be discussed on the new website but the majority of the topics will be related to general image processing.

Exstrom Laboratories LLC announces a patent pending on a new method for characterizing images that can be used for measuring image similarity, classifying images, and performing various other types of image processing tasks. more

We will no longer be manufacturing the Earth's field NMR magnetometer that we call the Magnum. However we will soon be making the complete construction details for the Magnum available for purchase. The price should be in the $10 to $20 range.