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2010-02-15
Added : Nim games 1..9
9 board games from easy to difficult, with hall-of-fame.
Look [here]
2009-07-03
Added : geometry puzzle.
Send me your solution, to be published
Look [here]
2009-04-26
Added Delphi drawing article, part - 2,
about Dots, Lines. Source code with explanation.
A new XBitmap class offers cliprects, multilevel painting, multipixel
wide dash - dot lines ...and more.
Download the exerciser and explore this new features.
Look [here]
2009-02-27
Added Delphi programming article :
flicker free dynamic painting
Look [here]
2009-02-25
Added Delphi programming article :
A Microseconds Counter
Look [here]
2009-02-17
Polygon-Overlap-Calculator version 1.1
Microseconds clock added to show processing times.
2008 - 12 - 03
New article "Delphi programming": fast drawing
Click [here]
2008 - 10 - 16
New freeware :
1. "Keystroke" : show codes of key-events
2. "fonttest" : show enlarged character image
2008 - 08 - 21
New freeware : The polygon-Overlap-calculator
Calculate the area of (3..12 angle) polygons and their overlap.
Save, reload, print polygons and settings.
look here
2008 - 08 - 02
New article : about Triangles and Sides....
look here
2007 - 07 - 07
New article : Geometric proofs of some trigonometric identities.
look here
2006-10-29
New article (Delphi programming) : "a simple component for color selection".
look here
2006-10-24
New version CONNECT4 .... download
Updated algorithm description. read
2006-07-03
Replaced program "chrcode" by new version.
(show ascii code of a character)
download
2006-06-11
Added article: calculate square root, using pencil and paper.
Explanation why this method works.
click here
2006-06-01
A short visit to Rome left some traces on this website.
(click on dome)
2006-05-21
added article: "Energy storage".
Compare energy densities of different type of fuel.
See how much energy can be stored in
- compressed air cilinders
- flywheels
- elevated concrete blocks.
click here
