Pyspread is a cross-platform Python spreadsheet application. It is based on and written in the programming language Python.

Instead of spreadsheet formulas, Python expressions are entered into the spreadsheet cells. Each expression returns a Python object that can be accessed from other cells. These objects can represent anything including lists or matrices.

In pyspread, cells expect Python expressions and return Python objects. Therefore, complex data types such as lists, trees or matrices can be handled within a single cell. Macros can be used for functions that are too complex for a single expression.

These video lectures of Professor Gilbert Strang teaching 18.06 were recorded live in the Fall of 1999. Support for the video production was provided by the Lord Foundation of Massachusetts under a grant to the MIT Center for Advanced Educational Services.

Jellyfish is a python library for doing approximate and phonetic matching of strings.

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String comparison: * Levenshtein Distance * Damerau-Levenshtein Distance * Jaro Distance * Jaro-Winkler Distance * Match Rating Approach Comparison * Hamming Distance

Phonetic encoding:

* American Soundex * Metaphone * NYSIIS (New York State Identification and Intelligence System) * Match Rating Codex

The onset of summer is no excuse to stop learning. In this year’s session, we will address Quantum Physics. Be here each Monday morning through July and August for a new lesson in the nine part series, covering graduate level physics concepts with grade school math, or no math at all. The first lesson: Classical Thinking: Why Does It Fail?

The 19th century was a turbulent time for mathematics, with many new and controversial concepts, like imaginary numbers, becoming widely accepted in the mathematical community. Putting Alice's Adventures in Wonderland in this context, it becomes clear that Dodgson, a stubbornly conservative mathematician, used some of the missing scenes to satirise these radical new ideas.

Welcome! This is the home page for The Computational Beauty of Nature, affectionately known as ``The Fish and Chips Book.'' Here, you will find information about the book, source code for simulations involving fractals, chaos, complex systems, and adaptation, and a whole slew of goodies for people interested in multidisciplinary topics involving computers, philosophy, and science.

Crank Dot Net is devoted to presenting Web sites by and about cranks, crankism, crankishness, and crankosity. All cranks, all the time.

A simple method for rating potentially revolutionary contributions to physics: