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The Arsenal Files 8
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The Arsenal Files Collection #8 (Arsenal Computer) (1996).ISO
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HISTORY.DOC
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1996-11-21
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UCALC v3.2 (11-21-96)
==========
Feature added
--------------
o 3D surface plotting with hidden line removal
Changes
-------
o There's a batch file for the graphing demo (PLOTDEMO.BAT)
o Values are displayed when variables are defined
o A command in UCALC.DEF makes UCALC load under a blue background
o Now I have an official web page for UCALC
http://members.aol.com/Dancorbier/ucalc.html
Bug fix
-------
o Text can be placed anywhere on the screen (even beyond row 25 in VGA mode)
o Straying graphic cursor on systems without a mouse is fixed
UCALC v3.0, v3.0c (3-31-96, 4-17-96)
=================
Features added
--------------
o TSR window can be moved or resized (with <Ctrl>+Arrow or <Alt>+Arrow)
o Mouse support
- User can check out coordinates using the mouse
- Left button zooms in, and right button zooms out
o PLOTF command sends graph data to a file
o The equation solver can now display multiple answers
Bug Fix
-------
o SEC, CSC, and COT functions now work properly in degree mode
o Multiparameter functions with nested definitions work properly now
UCALC v3.0 was released before a certain deadline, and submitted only
at one location. UCALC v3.0c is a re-release with small fixes to the
documentation and the program.
UCALC v2.8 (3-13-95)
==========
Features added
--------------
o TSR (allows user to pop UCALC up at any time by pressing a key)
- Takes less than 6K of main memory (when using EMS or file)
- User can choose hot key
- " " " EMS, Main memory, or file
- User can paste the result when exiting
- TSR mode is optional. It's loaded by typing "UCALC /TSR"
- UCALC can be unloaded from memory
o Menu for graphing which supports the following by pressing a key:
- Tracing
- Zooming
- Area filling
- color changing
- grid/axis toggle
- dot/connect toggle
- monochrome toggle
- graph redraw
o Text can be added on the graphic screen at the cursor location
o PPLOT, or PLOT with no arguments recall previous equations for plotting
o Equations in the form y=f(x) can have a domain, ex: "PLOT 1/x, 1 to 5"
o DOS redirection can be turned off for faster screen output
o Built-in support for MCGA
o COLOR command to change text color
Commands which are new, or enhanced include: COLOR, GCOLOR, GRID, AXIS,
ZOOM, PLOT, PPLOT, REDIRECT, CONNECT, PASTE, EXIT (TSR), and MODE (MCGA)
Changes
-------
o More pages have been added to the help screen
o The commands in the help screen are in alphabetical order
o The PLOTDEMO file has been changed to reflect new graphing features
o The shareware version is the same as the registered version, except
for registration reminders.
Bug fix
-------
o An error message is displayed when the incorrect number of parameters
is entered in built-in functions.
o Axis line markers are centered correctly when fractional numbers are
used in the WINDOW command.
UCALC v2.4 (8-16-94)
==========
Features added
--------------
o Graphic plotting:
- Fast plotting
- CGA, EGA, Hercules, and VGA modes
- Cartesian, Polar, and Parametric graphs
- LINE, FILL, and RECTangle commands
- Data from another file can be plotted
- Support for up to 16 supper-imposed multi-color user graphs
- Smart crosshair (moves gradually faster as you hold arrow keys)
- Adjustable screen coordinate system
- Adjustable precision for graphs
o Ucalc now supports the factorial symbol (!).
Changes
-------
o The syntax for several commands is more flexible. For instance
LOAD"MYFILE.DEF", LOAD MYFILE.DEF, LOAD(MYFILE.DEF), are equivalent.
Also, the ".." used in SOLVE, SUM, etc.. can be replaced by " to ".
For instance SUM(x,1 to 10) is the same as SUM(x,1..10).
o The variable PI, and the functions SEC (secant), CSC (cosecant),
and COT (cotangent) are now built in.
o The function definition space has been greatly increased, so that
many more user functions can be defined. Each expression however
can use a maximum of 33 operators.
o Due to support for the factorial notation with the "!" symbol,
the "!=" symbol for "not equal" is no longer supported. "<>"
should be used instead.
o So that UCALC can start up a bit faster, UCALC.DEF has been removed.
Users can create their own UCALC.DEF file, or can modify, and rename
UCALC.DE back to UCALC.DEF.
o Several extra features are now reserved for those who register.
Bug fixes
---------
o Functions with multiple parameters can be a part of user functions
without giving an error message.
o UCALC /? no longer changes the screen color attribute.
UCALC v1.8 (9-14-93)
==========
Features added
--------------
o Support for user functions with multiple parameters.
o Support for implicit multiplication.
o UCALC.DEF can contain any command.
o Variable 'last' contains the value of the previous expression
o Commands to change or remove the "ucalc> " and "Answer: " prompts
o PRINT, SHELL, LOAD, WRITE (save), CLOSE, EXIT (quick exit),
LISTF (list user functions) commands.
Changes
-------
o FIX controls number of decimal digits rather than total digits.
o DIG command added to do what FIX used to do.
o Due to support for implicit multiplication, users should now
avoid giving a function the same name as a variable.
o All the features previously reserved only for registered users
are now available in the shareware evaluation copy.
Bug fixes
---------
o F1 and CLS no longer change color screen attributes.
o Variables with embedded numeral digits no longer confuse the parser.
o UCALC.DEF in a different directory no longer causes a problem.
UCALC v1.2 (10-25-92)
==========
This was the first public release.