RPNcalc

RPNCalc for the Revo, Series 5 and other EPOC machines (SHAREWARE) ------------------------------------------------------------------ Disclaimer ---------- This version of RPNCalc is version 1.6 Use this software at your own risk. I accept no responsibility for loss of data. History ------- Version 1.6 Released 6/11/99 Completely revamped for the Revo and the growing range of other EPOC machines. This version no longer needs the "rpnscrn.mbm" file. Version 1.5 Released 20/9/99 Fixed bug which prevented selection of 8-bit unsigned values. Version 1.49 Released 21/3/99 Fixed bug with the Y^X function, which did not work if Y was negative (it gave an "Invalid Arguments" error). Fixed a recently-introduced bug which caused the wrong key captions when using the "Set" function (used to set up user-defined constants and conversions). Version 1.48 Released 2/2/99 Fixed bugs with the Int and h.mmss functions when using a comma as a decimal point (rather than a dot). Adjusted the stack handling with dual-operand logical operations (such as OR and AND) to consume the stack, as per HP calculators. Reversed the h.mmss and Inverse h.mmss functions to match HP calculators - h.mmss now calculates decimal hours to hours-minutes-seconds. Version 1.47 Released 4/10/98 Fixed a nasty bug introduced in version 1.45, where RPNcalc loops on overflow errors, eating up all your memory until it crashes out! Version 1.46 Released 16/9/98 The primary financial functions (PMT, PV, FV, TERM and RATE) have been rewritten. You can now solve for any one unknown, given any of the other four (eg it now takes account of FV when calculating PMT, which previously it did not). Also, calculations can now be made for payments at the beginning of a period as well as the end. Optional thousands separator implemented (eg 100,000 displayed rather than 100000). Version 1.45 Released 10/8/98 Keyboard handler rewritten (as evidenced by the keys appearing to stay pressed for as long as they are held down by the screen pointer). Now hopefully Geofox compliant. Version 1.44 Released 27/7/98 Improved the stack-handling to exactly replicate Hewlett-Packard. Now when stack lift is enabled, entering ANY VALUE will lift the stack, except for the two cases of ENTER and CLRX. Thanks to Rene Gysel for pointing this out. All the app and opo files merged into one app file. Version 1.43 Released 25/5/98 Added 3 shortcuts at the request of Tadashi Homma as follows: "m" = +/-; "z" = square root and "x" = 1/x. Key help indicates which keys have shortcuts. The "z" and "x" match the HP-200LX, and "m" matches the built-in calculator. Corrected a flaw with the stack-handling of X^Y to Y^X. These are dual-operand instructions, so should cause the stack to drop, but did not. Thanks to Dieter Tackmann for pointing this out. Version 1.42 Released 21/4/98 Maximum formula length increased from 60 characters to 250. Thanks to Tim Wortley for this suggestion. Version 1.41 Released 12/3/98 Floating to IEEE hex function added. Engineering display mode added - requested by Roland Heuberger. Changed X^Y to Y^X - this matches HP calculators and is more intuitive - thanks to Marcus Herold for pointing this out. Fixed MODULUS flaw. eg 70.9 INV INT displays 0.90000000000000006 not 0.9 - this is acually the value returned by EPOC32. I now calculate the MODULUS (fractional part) myself. Thanks again to Marcus Herold for telling me about this. Changed the key logos for square root, cube root and XrootY. X^-2 is not actually the square root of X, but the reciprocal of it! Thanks to Pappas Sotirios for this one. Fixed an error that occurred when setting up key constants - press SET button - "Set constants keys" - "Set c1 key" - "Select from list 1" - press the "Lists" button - gives "Subscript or dimension error". I must have broken this in release 1.4. Thanks to Anders Nilsson for noticing this. I am amazed it took two months to be spotted! Version 1.4 Released 7/1/98 Rectangular-Polar conversion added. Decimal hours to hours-mins-secs added, allowing time calculations. Random number function. 32-bit binary to IEEE floating or DEC VAX F_Float. Twice as many user-definable Constant/Conversion/Formulae keys. Cosmetic revamp. Version 1.3 Released 26/12/97 The calculator can be "flipped" from left-handed to right-handed (registered users only). The "inv" key can be locked. No longer a file-based app (and never should have been!). Includes a utility to display all ascii codes in the selected number base (removing the need to also have my Ascii program). The unregistered restriction that displayed certain functions in an informational message has been removed. I now feel that there are sufficient benefits obtained from registering the program, that this restriction is unecessary. Version 1.2 Released 7/12/97 Fixed stats update bug (X-register was sometimes ignored) Fixed clock bug - clock now obeys the system setting. Changed numeric keypad layout due to the requests from users. Moved the hexadecimal keys to the left and ordered the keys 1,2,3 etc to be more like a standard numeric keyboard. Added a feature that lets RPNCalc take over the silkscreen Calc key. Version 1.1 beta Released 27/10/97 Many improvements: 4 user defined formulae instead of 2, user-definable labels for the constants, conversions and formulae keys, INT, MOD and % functions, MAX and MIN statistical functions, financial functions, context help for every key, much more usable statistical facilities with the ability to view, delete and modify the stats values, etc. Version 1.04 Released 16/10/97 Fixed bug due to users setting International-Number decimal-point to the "comma" character. This prevented registration. Revamped display to create space for financial-functions. I have released this version prior to implementation of these functions because of the bug fix. Version 1.03 Released 10/10/97 Solved the missing "send to background" message when going to another program from the System Task List. Version 1.02 Released 9/10/97 Moved stats counter out of M9. Stats count now on key Version 1.01 Released 9/10/97 Fixed RAD50 bug - shouldn't be allowed in signed mode Added Hotkey and Escape to background Version 1.0 beta Released 7/10/97 Installing RPNCalc ------------------ 1. Make sure you have access to the System directory. For this, goto the preferences in the system screen. Check the 'Show 'System' folder' option. 2. Got the System\Apps directory and create a new directory called 'RPNCalc'. 3. Switch to this directory and copy all the supplied files to this directory (excluding this file). Ensure that NO conversions are done when copying any of the files. 4. The program should now appear on the Extras bar. 5. If upgrading, delete ALL THE OLD FILES and replace with the new (registered users will want to keep their existing RPNCalc.ini file). Read the supplied help file, which is accessible from the program. Registering ----------- RPNCalc is shareware. If you like it and wish to continue to use it you should register it. You may freely distribute RPNCalc as long as all files in the package are included. Registering brings a number of benefits. See the help file for details. Registering (cash preferred) costs £10 UK, $16 US or the equivalent in other foreign currencies plus 10%. Send to: Derek Johnston 14 Roxby Avenue Guisborough Cleveland TS14 8LF Alternatively register online from my web page using the RegNet service. When registering please make sure the following information is sent: + Your correct e-mail address + Your name (as you would enter it) Once you have registered, you will be sent a registration ID which you enter along with your name. This will work for all future versions of the calculator. Derek Johnston. EMAIL: decca@freeuk.com Homepage: http://home.freeuk.net/decca/