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Debuggers and Symbol Tables

Posted 12.28.2006, under Programming

Compiling a program turns a human-readable source file (set x = 3) into assembly language (load 3 into register) and finally into machine language (101010101…).

Debugging is stepping through a program to identify the cause of errors. But how do you step through a program that is stored as low-level machine instructions? (Some talented souls can read and decipher raw …

Debugging with GDB

Posted 10.31.2006, under Guides, Programming

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Math & Numbers

Mental math shortcuts, adding 1-100
Understanding exponents and the natural log
Div, Curl, Flux, Gradient and other Vector Calculus topics

Programming & Web Development

Site speedups with HTTP caching, gzip compression
Understanding Rails, Web debugging, and Javascrtipt
Swap bytes with XOR, byte order, unicode