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raganwald.com

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Latest posts

Last updated about 2 months ago

Cryptographic techniques used by nCrypt Light in 1994

over 2 years ago

Preface (2023) The following described the cryptographic protocol and algorithm used by...

Mutual Recursion in Language

over 2 years ago

This is not a programming post loanwords A loanword is a term...

Help Wanted

over 3 years ago

me and my puzzle Hello, my name is Reginald. I sometimes blog...

The Inner Osborne Effect

over 3 years ago

In software development, we talk a lot about software anti-patterns, how to...

The Mouse Trap (2008)

about 4 years ago

In the board game Mouse Trap, players build an elaborate Rube Goldberg...

Remembering John Conway's FRACTRAN, a ridiculous, yet surprisingly deep language

about 5 years ago

On April 8, 2020, John Horton Conway developed symptoms of COVID-19. On...

Exploring Regular Expressions, Part II: Regular Languages and Finite-State Automata

over 5 years ago

This is Part II of “Exploring Regular Expressions.” If you haven’t already...

Exploring Regular Expressions and Finite-State Recognizers, Part I

over 5 years ago

Prelude In this essay, we’re going to explore regular expressions by implementing...

A Brutal Look at Balanced Parentheses, Computing Machines, and Pushdown Automata

about 6 years ago

As discussed in Pattern Matching and Recursion, a well-known programming puzzle is...

Ayoayo and Linear Recursion

over 6 years ago

In this essay, we’re going to look at a game called Ayoayo...

Structural Sharing and Copy-on-Write Semantics, Part II: Reduce-Reuse-Recycle

over 6 years ago

This is Part II of an essay that takes a highly informal...

Exploring Structural Sharing and Copy-on-Write Semantics, Part I

over 6 years ago

This essay takes a highly informal look at two related techniques for...