Math Interactive: FAQ
1) What is the policy regarding updates and bug fixes?
Refinements and some minor features will be added in the next few months. After having been thoroughly tested
at a junior college for the last two years, we do not expect many bugs; those that are found will corrected
immediately. You can download the latest update of CalGraph 7.x at any time.
If you are using a trial version of CalGraph 7.x, the updated version will expire at the end of the original
trial period. If you have paid, you also have a perpetual license for any new version of CalGraph 7.x.
In a year or two, we plan to offer a new version (8.x) of CalGraph with the addition of some major features.
We will offer a significant price reduction for those who have purchased 7.x.
You can download the latest help files with no restrictions on usage any time.
2) Can we get a site license for our business or educational institution?
Yes, we will communicate with you within one business day after you provide us with your coordinates.
3) Why can we only pay with PayPal?
It will be possible to effect Credit card and Western Union transactions by mid September 2007 at the latest.
4) Why shouldn't we buy Maple instead of CalGraph? It has a lot of features you don't.
Lots of reasons:
a) Cost: Depending on whether or not you are eligible for their educational license, Maple costs between 6 and
16 times as much as CalGraph.
b) In fact, we have some very useful features Maple doesn't:
Conversions, Compound Interest Calculations, Statistics,
Zooming, left-click on any point to display its coordinates, Curve-Fitting and right-click menus for graph customization. Everyone who has
seen Maple and CalGraph agrees that our graphs are much, much better looking. The features which Maple has
which we don't (yet) are only needed by a tiny fraction of calculator users.
c) Ease of use: Anyone who has used the simplest of hand-held calculators can draw complicated graphs within
seconds of having installed CalGraph. Who has time to read an usage manual comprising hundreds of pages and
learn a programming language? Bright people have been exasperated in even attempting to add 1+1 with Maple.
No single free program offers even one tenth of our features, has a truly simple interface and is robust.
For example, Microsoft's Calculator Plus
doesn't attempt to do even 5% of what CalGraph can. It is far more difficult to use and is not
supported (no bug fixes nor feature additions promised).
There is some free reasonably good software available, but do you really want to have to learn how to use
10 different programs and then have to flip back and forth between them?