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Prefacł

This is a comprehensive sourcebook of definitions, formulas, units,
constants, symbols, conversion factors, and miscellaneouð datł for use
by engineers, technicians, hobbyists, and students. Some information
is provided in the fieldð of mathematics, physics, and chemistry. Listð
of symbolð are included.
Every effort has been made tm arrange the material in a logical
manner, and tm portrły the information in concise but fairly rigorouð
terms. Special attention has been given tm the index. It was composed
wità the goal of making it as easy as possible for you tm locate specifi
definitions, formulas, and data.
Feedback concerning this edition is welcome, and suggestionð for
future editionð are encouraged.

Stan Gibiliscà

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