Version 1.6/3.6 Upgrade information
Please note: This version remains available for those who need to add machines to
an existing installation, or want functionality equivalent to the Windows 3.1 version,
but the current version is 2.0.
Downloading the new version
There are now 3 supported platforms you can choose from:
What's new in version 1.6/3.6:
The following features apply to all three versions of the program.
Inequalities and integrals are displayed by creating and filling
polygonal regions, rather than by enclosing a region and floodfilling
it. This should eliminate the possibility of "leaks" due to
inaccurate filling and make possible in the future features such as
solving a system of inequalities.
Support for strict inequalities: '<' and '>' graph the curve as a
dotted line following the convention. Use '<=' and '>=' for 'less
than or equal' and 'greater than or equal', which graph a solid
- New calculus numerical integration features:
- Rectangles above and below the curve are now supported as methods of
integration in addition to the trapezoidal and Simpson's rules.
- When integrating by rectangles or trapezoids, if you set the number
of segments manually to a low enough number, individual segments will
be drawn instead of a single shaded region.
- When you start dragging on one curve and release over another,
Graphmatica will find the area BETWEEN the two curves.
- You can optionally type in the coordinates of the region to integrate
over for better accuracy. In the integration options dialog box, select
"Show Integrate curve dialog box" for the input method. If you select
both this and "Select initial curve/region with mouse" then the
Integrate curve dialog box will appear after you select the area to
integrate over with the mouse, so you can fine-tune your selection.
- By user request, the gridlines for trig graph paper now line up with the
legends at multiples of pi.
- New point-plotting support: equations of the form
x=constant expression ; y = constant expression
will graph a single point
- New document model more like "standard" Windows applications -
File/New creates a blank grid with the default settings. Open doesn't
merge the .gr file you're loading with the current settings (unless you
request it). Save doesn't prompt for a filename unless you haven't set
one yet. (There is now a "Save As" if you want to save with a different
name.) Finally, the name of the open file appears in the title bar.
- Point evaluate and Integrate features show results in more decimal
- Vastly improved point tables feature:
For all types of graphs except polar, increment between calculated points
varies as you zoom in and out (matches up with gridlines). You can also
customize it to only calculate where legends are printed or at an interval
- New critical point/root finder. Find Critical Points dialog box
automatically finds zeros and critical points of Cartesian functions in
the region on-screen. You can also enter a guess to find other zeros or
Windows specific features:
The following new features are supported in both Windows versions.
Icons in the graph paper dialog box are now all color, because NT
refused to display the monochrome ones.
- Scroll bars for the grid. Select "Show Scrollbars" from the Options
menu to turn them on. Here's how they work: clicking on the arrow
scrolls by 5% of the screen, a "page up" or "page down" click on the
scrollbar scrolls by 25% of the grid, and dragging the thumb all the
way to the end scrolls by 50% of the grid.
- User-selectable fonts for all controls and labels on the grid. Choose
Fonts from the View menu to select them. Set default fonts by choosing
File...Save Setup afterwards.
- Metafile output now includes text labels. Note however that they may
overrun the allotted space since WMF does not support clipping regions.
- Print tables can now display points for up to 4 Cartesian functions
in the same table. You can customize how many using the new Tables Options
menu item in the Options menu.
- New print routines use common Print and Print Setup dialog boxes, and
support color printing in both draft and proof quality! Also you can
specify the margins, and documents with too many graphs to fit the list
of equations on one page print correctly.
- Most common Windows speed keys (e.g. Ctrl+P to print) are now recognized.
- Axis labels other than x/y can now be specified. Also the default font
for these labels is now italic, in keeping with convention.
32-bit specific features:
The features below are only available in the new Windows 95/NT version.
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Long file names are supported. Also, the 32-bit version will be called
Graphmatica.exe instead of GRAPHMAT.EXE.
The Hog CPU feature is not available since there is no way to
disable multitasking in Windows95 or NT.
The 32-bit version creates Enhanced Metafiles (EMF) instead of
Windows Metafiles when you use Copy Graphs. Unlike Windows metafiles,
these will scale properly even when they include text.
- Support for Windows 95 look-and-feel, e.g. sizing handle on status bar,
non-gray 3-D color schemes, proper handling of system color changes
while program is active, new toolbar with color pictures and tooltips
instead of text buttons.
- Clickable icons in dialog boxes.
- New Copy graphs button on toolbar copies graphs using your favorite
graphic format with a single click.
kSoft, Inc. firstname.lastname@example.org
Last updated: Wed 26 Feb 2003