In the street with my laptop

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06.05.21   Free Pascal   New mathematics Lazarus/Free Pascal GUI application available : Create simple fractals using a basic L-System (40 sample L-system files included). Amazing pictures, created with a simple string-replacement "language".

28.04.21   Computing   New help text available in the Computer basics: Home & Office section: Help feature not accessible in Microsoft Office!?

26.04.21   Free Pascal   Very similar to my "USA quiz" Lazarus/Free Pascal GUI application, new download available: German Länder quiz: Capitals, surface areas, inhabitants, flags.

20.04.21   Free Pascal   New chemistry Lazarus/Free Pascal GUI application available: Strong acid-base titrations (including the simulation of such titrations).

18.04.21   Computing   New tutorial in the Computer basics: Home & Office section: Merging video files in Windows 10.

17.04.21   Free Pascal   Sorry for not having noticed it before. In my Lazarus/Free Pascal GUI applications, using a .html help file, help is not available, if you use a Chromium based webbrowser. Application concerned (and correctly working version available now): Flower quiz and Kids puzzle.

15.04.21   Free Pascal   Data update of my Puzzle for kids Lazarus/Free Pascal GUI application available. 4 new puzzle pictures (16, 24, 45 and 60 pieces), the total number of puzzle pictures being now 31.

14.04.21   Free Pascal   Data update of my Memory game Lazarus/Free Pascal GUI application available. 3 new picture sets (making a total of 17 now): Rainbows, roses, volcanos.

12.04.21   Free Pascal   A short help text, entitled Lazarus IDE: Some weird error messages in the Lazarus/Free Pascal programming tips section. May be useful for people, who begin to develop FPC applications with Lazarus.

10.04.21   Free Pascal   In a certain sense, an extended combination of "Sumdoku" and "Factors", with area results obtained by one of the four basic arithmeic operations (instead of the sums resp. the products). New Lazarus/Free Pascal GUI application available: Number puzzle: Kendoku.

09.04.21   Web/DB   New web application available online: DNA molecular weight calculator.

04.04.21   Free Pascal   New Lazarus/Free Pascal command line program available: Copy of the Windows lockscreen pictures to a user directory. Sometimes, these photos are really amazing...

02.04.21   Free Pascal   New version of my Lazarus/Free Pascal command line program Monthly count of the downloads from a website available, with now the possibility to specify a program output directory in the configuration file.

31.03.21   Computing   New tutorial in the Computer basics: Home & Office section: Adding custom words to LibreOffice dictionaries.

30.03.21   Free Pascal   New version of my Lazarus/Free Pascal GUI application The geometrical transformations, with, beside translations and rotations, now also reflexions and homotheties available.

27.03.21   Web/DB   My "other web applications" are now online again, too!

25.03.21   Computing   New text in the Computer basics: System & Security section: Dell G3 laptops and Windows 10 problems. Problems, that I encountered myself and, as show the numerous posts in the forums, are experienced by many users.

17.03.21   Web/DB   XSS vulnerability seems not to be the big issue to resolve, as I thought. Just some testing of the user input... My linear equations (1, 2 and 3 variables) and logarithm equations maths/science exercise generator applications are online again!

13.03.21   Free Pascal   Similar to my quiz about the world's longest rivers, here a new geography Lazarus/Free Pascal GUI application: World mountains quiz.

11.03.21   Homeless   New article in the Experiences and reflections section of my "Homeless life in Luxembourg" site: Must homeless people distrust those, who say wanting to help us?

10.03.21   Free Pascal   Essentially the same as "Sumdoku", but with area products, instead of sums. New Lazarus/Free Pascal GUI application available: Number puzzle: Factors.

06.03.21   Free Pascal   New physics Lazarus/Free Pascal GUI application (exercise generator and learning program) available: Color addition and subtraction.

28.02.21   Free Pascal   New tutorial in the The Lazarus/Free Pascal project section of my site: Installing supplementary Lazarus/Free Pascal packages.

23.02.21   Free Pascal   New Lazarus/Free Pascal command line program available: Peter de Jong attractors. No idea, what this could be. Just have a look: The beauty of mathematics!

20.02.21   Free Pascal   New physiology Lazarus/Free Pascal GUI application available: Tetanized muscle contraction, a simple program to draw the graph of shortening velocity and output power as a function of the muscle load, based on either Hill's equation or simple cross-bridge kinetics models.

17.02.21   Free Pascal   Update of my Classic puzzle game for kids Lazarus/Free Pascal GUI application: 3 new puzzle images available (15, 20 and 32 pieces).

11.02.21   Free Pascal   Continuing with my logic games Lazarus/Free Pascal GUI applications: new Number puzzle: Sumdoku available.

09.02.21   Free Pascal   New version of my Coins calculation game available in the Lazarus/Free Pascal GUI applications section, now in English and with choice between EU (euro-based) and US (dollar-based) coins.

04.02.21   Computing   New article in the Computer basics: Network and Internet section: Web browser trouble, some personal considerations based on these last weeks experiences with Firefox, Opera, Google Chrome and Microsoft Edge.

29.01.21   Free Pascal   New Lazarus/Free Pascal GUI application ready: Creating MS Windows file associations.

22.01.21   Free Pascal   Update of my Classic puzzle game for kids Lazarus/Free Pascal GUI application: 4 new puzzle images available (15, 30, 40 and 60 pieces).

20.01.21   Free Pascal   The 7th of my Lazarus/Free Pascal GUI applications, dealing with logic-gates based electronic circuits: Simulation of binary multipliers.

17.01.21   Free Pascal   New language related Lazarus/Free Pascal GUI application ready: Learn the Hebrew alphabet. New version, with some improvements, of the Learn the Greek alphabet application.

16.01.21   Computing   Little help text in the Computer basics: System and security section: Installing .NET framework 3.5 on Windows 10.

15.01.21   Free Pascal   New maths trainer exercise generator for primary school pupils available in the Lazarus/Free Pascal GUI applications section: Column calculations - Multiplication.

12.01.21   Free Pascal   New computing related Lazarus/Free Pascal GUI application available for download: Directory lister shows the objects (files and subfolders) of a folder with name, extension, type (system or other), size, date and file attributes. The listing may be exported to a file: text, CSV or HTML.

08.01.21   Homeless   New article in the Experiences and reflections section of my "Homeless life in Luxembourg" site: Impressions of an afternoon spent in Luxembourg-City.

04.01.21   Free Pascal   New version of my Lazarus/Free Pascal GUI application Classic Memory game, the picture sets being no longer included within the application archive, but may be individually downloaded from my site (link for this added to the application's menu). 4 new picture sets available: mountains, lakes, fall, castles.

03.01.21   Free Pascal   New version of my Lazarus/Free Pascal command line program monthly count of the downloads from a website available, the year to be considered now entered by the user (instead of automatically using the current year).


06.11.20   General   The problem with my CGI scripts not only affecting access to MySQL, and possibly not only being limited to Perl, I decided to temporarily remove most of my web applications from the server, in particular the HTML color picker and the 4 maths exercise generators.

04.11.20   General   For technical reasons (problems within the code of database related Perl scripts), AnimalDB has been taken offline (probably for a longer period).

26.08.18   General   Finally it has become a reality: streetinfo.lu: my own .lu domain! Big thanks to the one, who made this possible!

07.06.18   General   Due to the kindness of a gentle and friendly man, I had the chance to get an account on the HelioHost "Tommy" server. I made the decision to restart my "In the street with a laptop" website with a new URL: www.streetinfo.heliohost.org.

May 2018   General   Crash of the "Johnny" server and the need to entirely rebuild it. My website down for over a month. In a mood fluctuating between resignation and new hope, I continued to develop Lazarus/Free Pascal programs and writing homeless related articles.

Dec 2017   General   Creation of an account on the HelioHost test server "Johnny" and started the "In the street with my laptop" website with URL www.allu62.heliohost.org, containing informatics related stuff (in particular my Lazarus/Free Pascal applications) as well as information concerning the homeless people in Luxembourg.