VINNY RPN CALCULATOR 2022-1
INTRODUCTION
Vinny RPN Calculator 2022-1 is a FREE app for science and engineering
students. It uses Reverse Polish Notation. It temporarily converts the
computer's numeric keys into an RPN calculator. It allows direct use
of the computer numeric keys and math keys [ +,-,*,/ ]. The values can
be input in decimal or exponential format. The main menu item [Hide Trig]
Shows & Hides the Trig & Log functions. The mouse activates them. In
order to facilitate [Copy] and [Paste] to other apps, Vinny RPN stays on
TOP and is therefore always visible. The [Help] menu item toggles the
help window between open and close.
T: [T] register (top) display only.
Z: [Z] register display only.
Y: [Y] register display only.
X: [X] register working register.
CALCULATOR OPERATION
The app [Enter] button or the computer [Enter] key is one of the ways
to complete [X] register data entry but it is not always required. When
used it will duplicate the [X] value into the [Y] register and RAISE the
the stack one notch. Note the value in the [T] register is lost.
Trig, Log, Power and Root functions operate just on the [X] register and
do not affect the stack. These functions will complete [X] data entry.
Dual functions use both [X] & [Y] register in their calculations.
These include [+,-,*,/], [Y^X] and [Delta %]. Each dual function will
LOWER the stack one notch and duplicate the [T] value in the [Z] register.
The calculation result is displayed in the [X] register.
COMPUTER KEYS
Number keys enter numerical digits.
Keyboard functions [+,-,*,/] do simple math on [X] & [Y] values.
[Enter] key duplicates [X] value in [Y] & raises the stack one notch.
[Up/Down] cursor keys rolls the stack up or down one notch.
[PageUp] key toggles exponential format and the +/- sign of the exponent.
[PageDown] key toggles the +/- sign of the exponential mantissa.
[Home] key reformats the "X" display's decimal point location and exponent.
[End] key interchanges the [X] and [Y] register values.
DATA MOVEMENT
The [X<>Y] button and the computer [Home] key both interchange the
values in the [X] and [Y] registers. The down roll [R] button rolls
the [X,Y,Z,T] stack down on notch. The computer [Up or Down] cursor
keys respectively roll the stack up or down one notch.
DATA FORMAT
The main menu item [Set Decimal] opens a dialog box for setting the
number of digits displayed after the decimal point. To activate the
setting and to close the dialog box use the Computer [Enter] key
or just click on the [Set Decimal] menu item again. Use [PgUp] key
or [E+/-] button to enter exponential format and to change exponent
sign.
RPN FUNCTIONS:
[1/X],[Y^x]
[sqr(X)], [X^2]
[sin], [cos], [tan]
[asin], [acos], [atan]
[log], [10^x]
[ln], [e^x]
[Trig] & [Log] Buttons act on [X] register value.
Click the red [Degrees/Radians] label to switch Trig units.
[rad>deg] => Convert [X] value from rad to deg.
[deg>rad] => Convert [X] value from deg to rad.
Delta % between [X] and [Y] { X = 100% * (X-Y)/Y }.
OUTPUT
Displays all four registers [ X, Y, Z, T ].
[STO] and [RCL], to and from the [X] register.
[Copy] and [Paste], [X] to and from the Windows clipboard.
FILES IN THE ZIP PACKAGE
1-[Vinny RPN 2022 ReadMe.txt] => This file.
2-[Vinny RPN 2022 install.exe] => Installs Program files.
PROGRAM FILES
1-[Vinny RPN 2022 ReadMe.txt] => Program readMe file.
2-[RPN1.exe] => Main program executable file 100% scale.
3-[RPN2.exe] => Main program executable file 125% scale.
4-[RPN1.fig] => Program configuration file for RPN1.exe.
5-[RPN2.fig] => Program configuration file for RPN2.exe.
6-[uninstall.exe] => Program uninstalll all files.
7-[Install_Log.txt] => List of program installs and uninstalls.
UPGRADE HISTORY
Version 2022 New
Update 2022-1 adds [Set Decimal]; adds "Stay on TOP" feature;
adds [Hide Trig] main menu item.
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ABOUT THE AUTHOR
The author is a retired engineer. He lives in Arlington, MA.
If you have any questions or comments, contact him at the
email address below.
EMAIL ADDRESS:
vsansevero@gmail.com