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The HP 35s (F2215A) is the latest in Hewlett-Packard's long line of non-graphing programmable scientific calculators. Although it is a successor to the HP 33s, it was introduced to commemorate the 35th anniversary of the HP-35, Hewlett-Packard's first pocket calculator (and the world's first pocket scientific calculator). ==Features== The HP 35s uses either Reverse Polish Notation (RPN) or algebraic infix notation as input. Other features of the HP 35s include: * Two-line alphanumeric LCD display * Over 800 memory registers (26 directly labelled) * Scientific and statistical functions * Operation in decimal, binary, octal, hexadecimal * Equation solver with arbitrary variable isolation (first seen on the HP-18C) * Numerical integration (first seen on the HP-34C) * Support for input and display of fractions * Complex number and vector calculations * Unit conversions and table of physical constants * Keystroke programmability with approximately 30 kilobytes of memory for programs and data The HP 35s has been given a retro look reminiscent of classic HP calculators from the 1970s to the 1990s. However, it provides far more functions, processing power, and memory than most of those earlier models. The physical appearance and keyboard layout of the HP 35s is very different than that of its immediate predecessor, the HP 33s, but the two calculators are functionally very similar. The primary differences are: * The HP 35s allows both label and line number addressing in programs. The HP 33s had only label addressing. With only 26 labels, it was difficult to write programs making use of the entire 30 KB of memory. * The memory in the HP 35s is also usable for data storage, in the form of an extra 801 numbered memory registers. * Support for vector operations is new in the HP 35s. * Complex numbers are treated as a single value instead of two separate values. * Indirect branching, which allows the contents of a memory register to be used as the target of a branching instruction (GTO or XEQ) is omitted from the HP 35s. * No arbitrary limit to length of equations (the 33s had a limit of 255 characters).〔 HP has released a free-of-charge 35s emulator for the Windows operating system (and Wine).〔(【引用サイトリンク】title=HP Calculator Emulator program )〕 This was previously only available to teachers for classroom demonstration purposes. 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 35s」の詳細全文を読む スポンサード リンク
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