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The HP 33s (F2216A) was a scientific calculator marketed by Hewlett-Packard. It was introduced in 2003 as the successor to the HP 32SII,〔 and discontinued on the introduction of its successor the HP 35s in 2007. ==Features== Its main features are: * RPN or traditional semi-algebraic (infix data/algebraic operator entry/postfix one-number function entry), user-selectable * Two-line LCD display * Full scientific/engineering mathematical features * Keystroke-programmable with full boolean and program-control command sets and line edit, insert and delete * HP "equation list" equation editor (fully algebraic) in both the stand-alone list as well as in keystroke programs * HP Solver feature (solves equations and functions for one unknown) * Function integration feature * All mathematical operations and features fully functional in all modes * Unit conversion and constants * 31 KB of random-access user memory (equivalent to about 7 KB on earlier HP programmable models) The main differences from the HP 32SII are: * A radical difference in keypad layout and appearance * Memory is expanded from 2 KB to 32 KB * Faster processor * More functions * Algebraic entry mode as well as RPN * The display has two lines * The length of an equation was now restriced to 255 characters (no arbitrary limit in the 32SII)〔 The HP 33s was co-designed and manufactured by Kinpo Electronics of Taiwan.〔(【引用サイトリンク】title=Consumer Electronics: Calculator )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「HP 33s」の詳細全文を読む スポンサード リンク
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