	         VINNY RPN CALCULATOR VERSION 1.21 


INTRODUCTION
Vinny RPN Calculator is a Reverse Polish Notation utility program for
science and engineering students. It temporarily converts the computers
numeric key pad into a RPN calculator by allowing direct use of key pad
digits, [+,-,*,/] keys, [Enter] and [Up/Down Arrow & Page] keys.
Trigonometric and logarithmic functions are provided by mouse clicking
on dialog box buttons. Number inputs can be decimal or exponential with
dot or comma (European) digit separator.  Linkage to other applications
is available through use of the Windows clipboard. Optional features
include window stay on top, window shrinkage and a floating numeric key
pad. This zip package contains the complete 32-bit utility program for
Windows 95/98. 
  
INPUT
Use numeric key pad digits for data entry.
Use numeric key pad keys for simple math functions [+,-,*,/].
Use [Enter],[Up/Down Arrow] keys for register control.
Use [PgDown/Up] keys to change sign of (X and exponent of X).
Use trigonometric and logarithmic functions by clicking
dialog box buttons.
Note: Simple math functions [+,-,*,/] are also provided as
dialog box buttons.

FUNCTIONS:
1/X, Y^x
X^0.5, X^2
sin, cos, tan
asin, acos, atan
log, 10^x
ln, e^x
rad>deg
deg>rad

OUTPUT 
Displays all four registers:
T= Top
Z
Y
X= working
Copy and Paste, to and from, the Windows clipboard.

FILES IN THE ZIP PACKAGE
This zip package contains the following files:
read.txt : This file.
vincalc.exe: The executable utility for Vinny RPN Calculator.
vincalc.hlp: The Vinny RPN help file with sample problem.
install.exe: Copies above files to a user chosen directory
and installs a start menu item for the RPN Calculator.

UPGRADE HISTORY
Version 1.01 adds(RCL and STO button)and(Copy and Paste button).
Version 1.03 adds(+/- keyboard key) to change sign of X.
Version 1.04 adds(E+/- button & key)to change sign of exponent of X.
Version 1.06 adds window stay on top and window shrinkage.
Version 1.07 allows multiple instances of the RPN calculator.
Version 1.10 fixes shrink and multi instance problems.
Version 1.14 allows European (comma) number format as input.
Version 1.15 change of addresses.
Version 1.16 fix registration problem on WindowsNT.
Version 1.17 change of addresses.
Version 1.18 fix math error message so it stays on top.
             allow computation of square of negative numbers.
             extend trig function values for other quadrants.
Version 1.20 added an optional floating numeric key pad. 
             Extended the range of copy and paste.
             Changed the program so that it starts in
             the "shrunk" state.
Version 1.21 added [Reg] button to allow early registration and
             corrected button lockup error in version 1.20
    
REGISTRATION
To register Vinny RPN Calculator just click the [Reg] button on
the upper right hand side of the calculator. This will cause
the registration dialog to be displayed. This dialog will also 
pop up in place of the calculator when the free trial period has
ended or if you move the utility to a new directory. If this
happens try to close and then open the utility and the registration
dialog may clear if any free trial time remains.  If you can not
clear the registration dialog you have two choices. Email the serial
number at the top of the registration dialog to email address below
and request a two week extension to the free trial period or mail
in the serial number with $5.00(US) to the mail address below and
request a permanent registration code.  If you include a stamped
self addressed envelope you will receive an activation code by mail
or by email if you include your email address. Be sure to include
your serial number with your request. Free upgrades will be
available to registered users.
 
ABOUT THE AUTHOR
The author is a retired engineer.  He lives in Manchester,  Ct.
If you have any questions or comments,  contact him at one of the 
addresses listed below.  

MAIL ADDRESS
Vincent J. Sansevero, Jr.
71 John Olds Dr Apt 207
Manchester, CT 06040

EMAIL ADDRESS
vsansevero@earthlink.net

HOMEPAGE URL
http://home.earthlink.net/~vsansevero/


