HP 40g hp 39g & 40g_user's manual_English_E_pdfbpia5212.pdf - Page 9
Preface - 40gs manual
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Preface The HP 39G/40G is a feature-rich graphing calculator. It is also a powerful mathematics learning tool. The HP 39G/40G is designed so that you can use it to explore mathematical functions and their properties. You can get more information on the HP 39G/40G from Hewlett-Packard's Calculators web site. You can download customized aplets from the web site and load them onto your calculator. Customized aplets are special applications developed to perform certain functions, and to demonstrate mathematical concepts. Hewlett Packard's Calculators web site can be found at: www.hp.com/calculators Manual conventions The following conventions are used in this manual to represent the keys that you press and the menu options that you choose to perform the described operations. • Key presses are represented as follows: , , , etc. • Shift keys, that is the key functions that you access by pressing the key first, are represented as follows: CLEAR, MODES, ACOS, etc. • Numbers and letters are represented normally, as follows: 5, 7, A, B, etc. • Menu options, that is, the functions that you select using the menu keys at the top of the keypad are represented as follows: , , . • Input form fields and choose list items are represented as follows: Function, Polar, Parametric • Your entries as they appear on the command line or within input forms are represented as follows: 2*X2-3X+5 Preface P-1