Windows 95/98/ME/2K/XP (558K) (31 Dec 2005)
31 Dec: The Misc|Simulprint feature (printing more than one Winplot diagram on a
single sheet of paper) was crashing frequently. I think I have fixed the problem. We’ll see.
30 Dec: Enabled a feature that many you have been hoping for. Shading
explicit 2-dim inequalities can now be done with solid color. The dotted fill
has never behaved predictably when pasting diagrams into Word documents, so
this should be an improvement. This was a little complicated, so there might be bugs.
28 Dec: Opening a second file by double-clicking was still not
working, but should be now.
25 Dec: In response to users reporting difficulty opening winplot files
by double-clicking file icons, a new version has been prepared that attempts to deal with
new file-naming conventions (which allow spaces and extra periods).
See the FAQ.
21 Dec: The 2-dim Slider and 3-dim Slicer dialogs were not responding
correctly to changes in scrollbar settings. Now they are.
28 Sept: The Mapping windows now allow the composition of mappings in
the Two|Combinations dialog.
8 Sept: A user pointed out a bug in my parser, which shows itself
when you divide one expression by a constant trigonometric expression,
as in “cos(x)/cos(0.5)”. It is now fixed, I think.
16 Aug: A teacher suggested some improvements to the secant-tangent
demos. You can also now put arrows at the ends of segments in 3-dim drawings.
14 Aug: A user pointed out that double-clicking an inventory item
ought to open the edit dialog. Now it does.
6 Aug: At the request of several users, the 2-dim program will now find the
intersection of two implicitly defined curves. Please report any glitches — this was
more complicated to program than you might think.
12 Jul: At the request of several users, you can now put arrows at the
ends of segments in 2-dim drawings.
29 May: The format of tables (column width and decimal places)
can now be controlled by the user.
6 May: Oops! Yesterday’s updates were incorrectly compiled,
causing some menu items to be grayed out. Sorry for the inconvenience, but
please download again.
5 May: The increased resolution feature installed on 10 March
can now be disabled by those users who would rather not have the added file size.
In addition, it is now possible to assign a filename to the graphical display,
using the Windows enhanced metafile format. In 3D, many users were being mystified by the strange
effects caused by not specifying a bounding box for sequences and differential
equations, since the default examples install rather large boxes. The
program now prompts the user for box information when the example is first
created, just as it does for implicit examples.
24 Apr: It was possible for z-axis Tours in 3-dim windows to cause a
loss of system resources. A repair has been made.
2 Apr: In the user-defined function dialog, the horizontal scroll bar was
not appearing when it was supposed to. Now it is.
23 Mar: Sérgio de Albuquerque Souza sent me this remarkable
link. It shows
how parametric equations allow a creative Winplot user to escape the
confines of functions defined on rectangular domains.
10 Mar: A long-overdue improvement, which should please those users who paste Winplot diagrams into MS Word documents. These embedded figures have been printing for years at screen resolution (which means very low resolution), but — thanks to
a suggestion from an user — they should now print with maximum resolution. Also fixed two bugs: One caused a crash when polar-coordinate points were highlighted
with arcs. Another bug caused sporadic crashes when the program closed.
17 Feb: Supplementary text inserted into a diagram can now be rotated.
1 Feb: Posted the Italian version today.
While preparing it, I inadvertently mixed up the English and Italian versions of the 3D File help text, so if you downloaded the English version yesterday, please do it again today!
31 Jan: Minor corrections: The text windows (help files, notebooks,
tables) were losing their carets (the blinking thing) now and then, and were not
opening files correctly. Also fixed another small error that allowed faulty
initialization data to occasionally gum up the 2D zoom function.
17 Jan: The observer coordinates in 3D can now be viewed and
manipulated using spherical coordinates. While modifying this dialog box, I noticed that
the plotting of points in spherical coordinates had been ruined by an improvement I made
on 31 Dec 2004. So, if you have downloaded the program since then, you’ll want to do it again.
15 Jan: It seems that the old “search” function that I installed years
ago in text windows no longer works under Windows XP, so I had to revise it.
11 Jan: Fixed a small but annoying glitch, which caused the program to
misinterpret some data when the number of displayed decimal digits was set to 0.
10 Jan: Enabled the full array of constructors
joina, joinb, ..., joinz for piecewise-defined functions. These
are useful for parametrized examples.
6 Jan: The foreign-language versions suffered during the previous
update — their main menus were all disabled. Sorry about that!
3 Jan: In 2D, the delete button in the Inventory should have been
disabled while polynomial editing was in progress. Now it is.