42S RPN Calculator 2.1.2

42s is an iPhone port of Thomas Okkens excellent and stable Free42, a complete re-implementation of the highly praised HP-42S RPN calculator. There are no ROMs or emulators involved allowing 42s to run natively and fast. This calculator provides all the functionality of the original 42S with several hundred functions, programability, printer output, etc. Additionally, several enhancements have been made over the original calculator such as additional precision and the ability to import and export programs. 42s is all about RPN goodness! features include:

* Import and Export programs to and from the 42s with an easy to use web interface.
- Programmable for custom functionality. Packages are available for additional functionality including Engineering, Scientific, Financial, Statistical, etc. Backward compatible with 41CX programs.
- Internally stores values and performs operations in 25 digits of decimal precision. For example, results are more accurate then many financial calculators when using a TVM program.
- Use the iPhone keyboard for entering character data, or variable names.
- Runs several orders of magnitude faster then the original calculator, including program execution, solving, integration, matrix operations, etc...
- Swipe LCD vertically to switch between 2 line or 4 line stack display or 5 line program display.
Double tap LCD to cut and paste one or more numbers from the stack
- swipe LCD vertically on the right hand side to roll stack contents, or to scroll a program in program mode

Recently added features:

* Key clicks work with 1st generation iPods.
- Sound tones mimic those of the original HP-42S
- Double tap LCD to cut and paste one or more numbers from the stack
- Double tap print output view to copy print contents * Use the default system key click sound
- Paste multiple number into the stack.