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Discussion: Magic Square Java Applet tool
Topic: Magic Square applet
Related Item: http://mathforum.org/mathtools/tool/1/


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Subject:   Magic Square Applet
Author: Jill Britton
Date: Nov 30 2003
The applet will be found in
http://mathforum.org/alejandre/java/magpuz/MagPuz.html which includes all the
required source files for downloading. It poses no problem for older browsers
and probably works for MACs as well, since Suzanne did not include a
corresponding caution. It fails to inialize with recent versions of Internet
Explorer and Netscape. (Netscape no longer supports a drag and drop feature, so
there is no reason to worry about that browser.) I downloaded a plug-in from
Sun Microsystems that allowed it to run in Internet Explorer 6.0 under Windows
98 - but that is too specialized a use. It needs to be able to run without any
non-traditional plug in's under recent versions of Internet Explorer and for
recent operating systems - like Windows NT and Windows 2000.

Your programmer should be able to run the applet by using an older browser (or a
MAC?). If that is not possible, the web page
http://mathforum.org/mathtools/tool.html?&id=1 contains a screen dump. The user
is allowed to select the "level" or "order" of the square - 3, 4 or 5. The
corresponding numbers from "1" the square of the level/order appear alongside.
The default level is 3. Numbers can be dragged and dropped into the grid as the
row, column & diagonal sums are adjusted accordingly. When one is successful,
"It's a Magic Square!" appears across the applet. It would be terrific if the
level options could include 7 to allow the user to test his/her understanding of
de la Loubere's diagonal method for odd level/order magic squares - but that is
frosting on the cake. In any event, level 6 should NOT be included. (The even
level/order 4 is bad enough.)

I could e-mail several screen dumps for your programmer if you wish.

Many thanks.

Jill

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