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Get up to speed easily with your TI-89 Titanium Use advanced science and math applications, PDA functions, and more Your TI-89 Titanium graphing calculator is an amazing tool, and this plain-English guide gets you up and running on all the things it can do, quickly and easily. Find out how to use the preloaded applications, let your calculator double as a PDA, do algebra, trigonometry, and calcu...

If you have a TI-83 Plus graphing calculator, you have a veritable feast of features and functions at your fingertips, but chances are you don't take full advantage of them. This book helps you explore your TI-83 Plus Graphing Calculator. It also helps you to discover how your TI-83 Plus Graphing Calculator can solve various kinds of problems.

This concise, easy-to-use text-workbook is designed to build speed and accuracy skills on the ten key pad using the touch method. Contains strokes-a-minute (SAM) and errors-a-minute (EAM) which were established on scores from users.

The world's first computing system, the abacus was an ingenious invention designed to perform speedy calculations through the movement of beads on a series of rods. The new edition of Dilson's marvelous book is even more user-friendly that the original; it comes with a working abacus that can be used in concert with its easy-to-follow and clear illustrations.