Download

You can download the current version of YaRPNcalc here and the current version of YaRPNcalcHD (for HTC Touch HD and Sony Ericsson XPERIA X1) here.

To install YaRPNcalc copy the .cab file to your Pocket PC, then, in your Pocket PC's file explorer, tap the .cab file to start the installation.

Requirements

To run YaRPNcalc you need a Pocket PC with the .NET Compact Framework 2.0 installed. This is already installed on all Windows Mobile 6 devices.

Found a bug?

If you found a bug or just want to comment on YaRPNcalc, please send me an email.

Release History YaRPNcalc HD

Compatible with HTC Touch HD and Sony Ericsson XPERIA X1 (800x480 screen resolution)!

6. December 2008 : version 1.2

Currency conversion with daily rates from The European Central Bank (see User guide for more info)
fixed crash on conversion screen in landscape mode

28. November 2008 : version 1.1

landscape support (see User guide for more info)
fixed 'repeatedly typing same digit is slow'
new icon

18. November 2008 : version 1.0

increased stack size (5 instead of 2 lines)
somewhat nicer buttons

Release History YaRPNcalc

Compatible with QVGA and VGA devices, portrait or square screens (landscape screens are not supported).

22. January 2009 : version 1.6.1

Fixes 'YaRPNcalc doesn't scale on VGA devices'. No need to update from 1.6 if your device doesn't have a VGA screen.

6. December 2008 : version 1.6

Currency conversion with daily rates from The European Central Bank (see User guide for more info)

1. December 2008 : version 1.5.5

added support for 320x320 square screen Pocket PCs (e.g. Palm Treo 800w)
fixed 'repeatedly typing same digit is slow'
cosmetic changes on the buttons
new icon
Note: .NET Compact Framework 2.0 is now required. This is already installed on all Windows Mobile 6 devices.

21. December 2007 : version 1.5.4

added Last X
fixed crashes when using the time / date functions with very large (invalid) numbers

5. October 2007 : version 1.5.3

fixed freeze when switching to engineering mode with number 0 on the stack (again)
fixed crash when starting YaRPNcalc in Landscape mode

31. May 2007 : version 1.5.2

implemented time and date functions
implemented user function layouts

24. April 2007 : version 1.5

implemented different function layouts
implemented 2^x function
fixed crash when using 'Rotate stack' with too few arguments

1. April 2007 : version 1.4.2

added support for square screen Pocket PCs (e.g. Palm Treo 750)
implemented 'Rotate stack'
fixed a wrong bitrate conversion factor

2. March 2007 : version 1.4.1

made loading user conversions file more robust

25. February 2007 : version 1.4

new UI look
delta % function
all HEX digits keypad

14. December 2006 : version 1.3.3

fixed freeze when switching to engineering mode with number 0 on the stack

25. April 2006 : version 1.3.2

implemented culture specific decimal point symbol and thousands separator. The decimal point symbol as well as the thousands separator now depend on the 'Regional Settings' set on your device.
fixed a bug in the menu code.

19. April 2006 : version 1.3

changed the way the menu buttons work
It's now no longer necessery to switch to the Conversion mode to do conversions. Instead, to make a conversion, just press the right menu button twice. For constants, just press the left menu button twice.
implemented a tool to create an up-to-date currencies conversion file.

9. April 2006 : version 1.2

implemented user conversions
implemented user constants
implemented smaller font on stack display for 32bit binary numbers (complete number now visible)
changed constants and conversions files from xml to non-xml which makes them smaller and improves startup time (somewhat)
fixed some bugs; my favourite being: -'123.4 (1000's separator on negative numbers)
made some minor cosmetic changes

19. March 2006 : version 1.1

implemented new functions: coordinate conversions (polar <-> rectangular), absolute value, hyperbolic functions, permutation, combination, sum, mean, median, variance
implemented 1000's separator
implemented 'show values' display mode for constants