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The index page for all
Programs on the site?
The DFF Play CD?
CD.zip contains executable version of about 75 of
the 200+ programs from the site, mostly those I particularly liked
or thought would be of widest interest for non-programmers.
The file is rather large, about 20mb..
Not a programmer (yet)?
That's OK - the executable
version for any puzzle or game you find here is available for
download. Just scroll down to the bottom of most any
description page and you'll find a "Download executable"
link. Downloaded programs are in "zipped" format to reduce size and
may require an "unzipper" program unless you are running Win XP or
link to a free one.
Check out the
Most Popular Downloads from
DFF (updated weekly)
First time visitor?
Take a look at the
page to see what this site is about
Notes for Teachers
January 18, 2018:
3D Lab is an
interesting program which draws one of several sample 3D objects viewed from
multiple angles and elevations under user control. Even though the code is
20 years old, it implements the math behind virtually all of today's CGI
productions. Much of the code here is likely implemented in hardware
today. Thanks to Earl Glynn for publishing the original program and
for permission to re-post it here with a little animation of figure
January 3, 2018: Happy New Year!
Here's an interesting history
clip from the SourceForge website today:
On this day in 1983 TIME magazine named its first Machine of the Year: the
personal computer. It was a deviation from their annual tradition of naming
Man of the Year, but was an appropriate one. At that time the PC was making
big strides and a big impact on the world at large. As TIME publisher John
Meyers wrote: “Several human candidates might have represented 1982, but
none symbolized the past year more richly, or will be viewed by history as
more significant, than a machine: the computer.” The PC remains the first
and only Machine of the Year that TIME magazine has ever named.
December 13, 2017:
The Cast A Word puzzle
has been solved! Just not by me. Recall that we are given 16 four
letter words which can be formed by throwing four dice with letters on their
faces and reading the tops. The problem is to assign letters to the
dice in such a way that this can be done.
Cast A Word. Version 2 written by Sergio, a smart, older, Italian,
"just for fun" programmer bailed me out. Click the link to find out more
and download the program.
November 29, 2017:
Log Sawing Version 4 was posted
today. This program suggests effective ways to saw logs into lumber with a
horizontal bandsaw. It is a major rewrite from the original, hopefully for the better.
The original program was written in 2010 when owning a sawmill
was only a "big boy's" dream. Now that the dream has come true, it's time
to make the program more than a math & programming exercise. The biggest
change from version 1 is the more realistic reporting of cutting positions as inches above the bed since the
saw head moves down rather the the log moving up as boards are cut.. Click the link
see more change details and to download the program.
31, 2017: A grandson's wedding, a run-in with an uninsured deer,
replacing a garbage disposal when it its retaining clamp rusted through,
breaking-in the new sawmill, and a hard-to-crack puzzle have made this a busy
month without much to show for it. The puzzle of the month
Cast A Word, is an interesting
one that that's going to require more time to program. In
desperation, I did solve it with pen and paper today, so might get a solver
programmed before Thanksgiving J
The What's New Archives
July 7, 2014: Note:
this "Collapsible" month by month list of postings since year
2000 is not collapsing for some reason, making this a very large
home page. Until it gets fixed, you can reference the complete
quarter by quarter list of postings on the