Logos is a calculator designed with the Reverse Polish Notation at its core. Reverse Polish notation (RPN) is a mathematical notation in which every operator follows all of its operands, allowing for extreme efficiency and clarity. FEATURES:* RPN Based: Enter your operands first, then your operators* Stack Preview: Your current Equation is displayed above the Result* Advanced Mathematical/Scientific Views* Calculate with Degrees or Radians* Supports Scientific Notation* Memory Storage and Retrieval * Graphing Calculator * Custom Logs * Specific Error Messages Functions:* Percent * Sum* Inverse Trigonometry * Calculus Functions* Algebraic Programs* Custom Logs* Custom Exponents * Factorials* Combinations and Permutations * Pi and e Constants * And Many More Now you can do any calculations in the RPN way on the go.
Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer. It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image. The executables and source code are released under the terms of the GNU General Public License, version 2.All third-party code used in Free42 is either in the public domain, or licensed under terms compatible with GPLv2, or used with the authors permission.
GraphCalcPro2Go is an advanced scientific calculator, offering features found on expensive handheld calculators, but with additional capabilities not possible with handhelds, thanks to iOS.Features include: No ads. Ever. Premium upgrade adds additional features, including: Graph multiple equations simultaneously Graph printing and sharing Additional built-in constants, fully customizable iCloud sync and sharing of user constants
Students and scientists from the 1980s will remember the classic RPN scientific calculators. These calculators strike a perfect balance between functionality and complexity. I love this calculator and I like to share.
NeoCal Lite is based on an advanced, award-winning calculator designed to work just like a real calculator, only better. The intuitive keyboard design provides efficient access to many scientific and conversion functions without having to access menus or lists of functions. SUMMARY OF BUILT-IN FUNCTIONS- Scientific: trigonometric, hyperbolic, and logarithmic functions- Conversion: length, area, volume, speed, weight, temperature; unit arithmeticSUMMARY OF FEATURES- UI designed specifically for the iPhone, iPad and iPod touch- Multitasking support for use with other apps- User-selectable themes- Multiple keyboard layouts- 12-digit display with thousands separators- Labeled results for clarity- Optional RPN input method- Selectable RPN stack size- Up to four display lines- 20 or 100 user registers- Multi-level Undo/Redo- Extensive user guide
my41CX is an advanced programmable and expandable RPN Calculator. It is a functionally equivalent to the world famouse HP-41C/CV/CX calculator. Calculator features:- Functionally equivalent to the HP-41C/CV/CX- Programmable- Four module ports provide access to HP-41 expansion pacs- 63319 Memory registers (depending on the model emulation)- 4412233 Program steps (depending on the model emulation)- Support for .MOD files- Beautiful and clean user interfaceNote:- Beep is not supported