An Aeronautical Engineerings user's manual to the HP-28S handheld calculator.

Abstract

Handheld calculators are now powerful enough to have become indispensible tools for the engineer and scientist. With enhanced equation solving capability and extensive user memory, the HP-28S introduces exciting new possibilities. The entire set of tables for one-dimensional gas dynamics can be accessed with unequalled accuracy and speed. But this enhanced power cannot be properly tapped without a pre-planned user directory organization which takes advantage of the HP-28S internal structure. Experience has shown that many students buy expensive programmable calculators but underuse them, finding their powerfulness baffling and frustrating. They employ the same computational techniques with sophisticated $200 continuous-memory programmable machines as could be accomplished with a simple $20 scientific calculator. This manual contains a compendium of useful formulae, programming, and computational techniques for the popular HP-28S Pocket Calculator. In addition to helpful instructions on units conversion, directory organization, and problem-solving methodology which will benefit any HP-28S user, the Aeronautical Engineering student will find sections on Thermodynamics, Aerodynamics, and Controls which will prove useful in those fields of study.