Detailed information about Valgetal

     
 

---Detailed information about installation etc. --- Main page
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The installation of Valgetal is easy; just execute Valsetup.exe of copy the files of Valgetal to the directory where you want to use it. Valgetal does not change anything in the configuration of your computer.

Valgetal will work on almost every PC with Windows. In case it runs slowly you would like to use it in Windows 3 or in Ms-Dos, you could use the former Ms-Dos based version.

We have checked our software for virus, the site from where you've downloaded probably also did a virus check, but of course it's a good idea to do yourself a virus check too.

The newest version 3.3 is similar to the older versions 3.1x, but we have improved it a bit to make it work in even more different hardware configurations: it seems to work now in almost any screen configuration: with small and large fonts, and any screen size larger then 640x480, and in any PC (486+) with Windows.

Valgetal 3.3 can be used in Windows computers, with all kind
of screen configurations (640x480, 800x600, 1024x768 or higher)
and colour settings (256 colours, high density 16 bits and
true colour 24 bit). If it doesn┤t work, you can use
the Msdos version which can be donwloaded in our website.

Valgetal 3.3 is approximately the same game as the former
versions of Valgetal: the High Score results obtained with any
version are comparable. Also the "game-speed" of Valgetal is about
the same on every computer, so the results obtained with
different computers are comparable.

Just to be complete, you can read down below some more details about Valgetal and Valgebra.

History
The files of Valgetal and its installation
Details about the former Ms-Dos based version Valgetal 2.4 (Valdgtal)
Details about the Ms-Dos based mathematical game Valgebra
How to "unzip" a compressed ".zip file"
Possible problems
After introducing the correct password you still have the trial version
After introducing the password you get an error message
Valgetal 3.0 does not fit on the screen
Valgetal 3.1x causes graphical errors
Valgetal 3.1x runs slowly or does not work correctly
The Ms-Dos program Valgetal 2.4 (Valdgtal) causes error 200 in Windows 9x
The Ms-Dos program Valdgtal or Valgebra causes error 003 in Windows 9x
Appearance of Valgetal 3.1
Some extra notes


History of Valgetal

Autumn 1994: the author suddenly got the idea of making a "kind of Tetris", but with numbers... He just started and learned in the mean time the necessary computer/programming skills..

Autumn 1994 Valgetal 1.0:
Only adding, in Dutch, Msdos based;

Autumn 1994 Valgetal 2.0:
Adding, Subtracting, Multiplication, and Dividing;

Spring 1995 Valgebra 1.0:
Only in Dutch, Msdos based;

Summer 1996 Valgetal 2.x:
In Dutch, English, Spanish and Frisian;

Summer 1998 Valgebra 1.1:
In Dutch, English and Spanish;

Summer 1999 Valgetal 3.0:
For Windows 95/98/NT, only 800x600 screens and occupying the whole screen, without status-bar; Valgetal is available in the Internet;

Autumn 1999 Valgetal 3.1:
For Windows 3.x/95/98/NT, for 640x480, 800x600, 1024x768 screen configurations and besides the arrow-keys, also the mouse-buttons can be used to manoeuvre the falling numbers; After starting up the program, the user can choose to let the program occupy the whole screen, or only a part of the screen;

Summer 2000 Valgetal 3.12:
The website of Valgetal is now www.valgetal.com. A handy setup routine has been incorporated. The setup routine has been created with Install Max. The author thanks Ed Jordan for giving this program to him.

September 2001 Valgetal 3.2
Valgetal has been translated into German.

October 2001 Valgetal 3.21
Valgetal has been adapted to work with even more screen configurations: besides with standard fonts (96 ppp), it works now also rather well with large fonts (120 ppp).

May 2006 Valgetal 3.23
Valgetal is distributed for free, so more children, and adults can enjoy it. Perhaps they will get so a
little more positive perception of mathematics. They author hopes he made in this way a positive contribution to the world.

July 2007 Valgetal 3.23. Another install program is used, not suitable for Windows 3.x but better for Windows 95 and higher. An easy un-install has also been included.

August/sept. 2008 Valgetal 3.3 As requested by some users, in the first two levels the blocks are falling down more slower. The appearance of Valgetal in different screen configurations has been improved, as well as the sound-effects; these seemed not to work very good in Windows Xp/Vista, in the former version. Now they work fine again. Valgetal can not be installed any longer in Windows 3. In case, the former msdos version could be used. The way the program calculates the score has been changed in such a way, that the best score will be obtained starting in a high level. (this was our idea from the beginning, but experience showed it did not work out exactly like planned..). An experienced player will so not be obliged any longer to run though all the lower levels to obtain a maximum amount of points (would be not very exciting..) Scores obtained in older version still can be compared with version 3.3, although probably the highest score will be achieved in the newest version (for well trained players).

The files of Valgetal and its installation

If you have downloaded the newest version and the file Valsetup.exe (764 KB), the installation is easy. Just execute this file and you will install Valgetal in your Windows Start/Programs menu en in your desktop.

You remove Valgetal from your computer by executing "uninstall" in your Windows Start/Programs/Valgetal3.3 menu.

The set-up routine Valsetup.exe will install the following files:

Valgetal.exe : the executable file of Valgetal 3.3;
Valclean.exe : to clean the High Score lists of Valgetal 3.3;
uninstal.exe: uninstall routine;
Valgetal.dat : data file;
Valgetal.mid : music file;
blauweblokjeweg.mid: music file;
Gameover.mid: music file;
goed.wav: music file;
slecht.wav: music file;
Nextlevel.mid: music file;
Valicon: icon file;
Valgetal.htm: file with the internet addresses of Valgetal;
Valgetal.txt: text file with information.

All these file occupy less then 1500 KB.

Also it is possible that you have downloaded a compressed ".zip file". It can have several names, like Valgetal.zip, vlget311.zip, vlget312.zip or vlget323.zip , depending of the version and from where you have downloaded. Its size is between 400 or 764 KB (depending of the version). You can "unzip" it using, for example, the programs Pkunzip, Winzip or Winrar.

In some versions it will also copy the following files to the directory where you install Valgetal:

Valdgtal.zip : the compressed file of the Ms-dos version Valgetal 2.4 (Valdgtal);
Valgebra.zip : the compressed file of the maths game Valgebra.

Recommended hardware and configuration for Valgetal 3.3::

- Pc with Windows 95, 98, NT , 2000, XP, Vista etc.
- All screen-configurations (640x480, 800x600, 1024x768 or higher);
- Font-size: small (normal size, 96 Ppp or large 120 Ppp);
- All colour settings: 256 colours, high density 16 bits and true colour 24 bit; in the main-menu you can switch between "simple" and "sophisticated" colour; the latest colour setting is the most beautiful, but with some screen-configurations it will produce graphics errors;
- works already in (approximately) 386 Dx computers with 4Mb Ram, 40 Hz, with windows 95 (although a little bit slow). In "very old" computer you could use the former Msdos version of Valgetal.

Valgetal 2.4 (Valdgtal)

The zipped file Valdgtal.zip contains the files of the former Ms-dos based version 2.4 of Valgetal.

Install

Copy Valdgtal.zip to the computer and directory where you want to use it. Take care to install it in a directory with a name less (or equal) then 8 letters/symbols, otherwise it would be possible that the program will not work! (in Windows 95 error 003, in Windows Xp + there seems to be no problem)

Here you can "unzip" Valdgtal.zip with, for example, the shareware programs Pkunzip.exe or Winzip.exe.

After unzipping it you get:

Valdgtal.exe : the executable file of Valgetal 2.4;
Valpfile.dat : data file;
Valmfile.dat : data file;
Vals.dat : data file;
Valkfile.dat : data file;
Valdfile.dat : data file;
Valtaal.dat : data file;
Valdcln.exe : to clean the High Score lists of Valgetal 2.4.

You run the program with Valdgtal.exe

The program will work in almost every Pc with Ms-dos, Windows 3.x or Windows 95/98, and already in rather "old" computers like 286, 186.. (even with a monochrome monitor!). This is an advantage if you want to use the software in a school, where often "older" computers still are in use.

Uninstall

Just delete its files.


Valgebra

The zipped file Valgebra.zip contains the files of the Ms-dos based mathematical game Valgebra .

Install

Copy Valgebra.zip to the computer and directory where you want to use it. Take care to install it in a directory with a name less (or equal) then 8 letters/symbols, otherwise the program will not work! (only in Windows 95, error 003)

If you "unzip" Valgebra.zip you get:

Valgebra.exe : the executable file of Valgebra;
Valgebra.dat : data file;
Valgtaal.dat : data file;
Valgbs.dat : data file;
Valgcln.exe : to clean the High Score lists of Valgebra.

You run the program with Valgebra.exe.

The program will work in almost every Pc with Windows 95, XP, Vista etc. It'ss installation only will require about 1.5 MB of space in your hard disc.

Uninstall

Just delete its files.


Possible problems (as known by the author)

We try to be as complete and correct as possible...

After introducing the correct password you still have the trial version

After finishing version 3.1 (1 Nov.1999) we forgot to take out a test variable, causing the above-described error. Although we almost immediately discovered it and withdrew it, it could be possible that some samples have been circulated (the files with this bug were called: vlget310.zip or Valsetup.zip). Check that in the welcome screen (with the picture of the earth) is written: Valgetal version 3.11 of 3.12 (this is the right file, without bug). In case you can download now the correct file in this web site.

After introducing the password you get an error message

Take care to fill in exactly the same name and address as written in the E-mail you have received from the author (and that you mentioned before to the author). The password is calculated with each letter or symbol of the name and address. If you change one letter, the password will not longer be valid.

Valgetal 3.0 does not fit on the screen

The former version 3.0 only worked with 600x800 or larger screens. In smaller screens it did not fit. In this site you can now download the improved version 3.12 (3.21) suitable for 640x480 and larger screens.

Valgetal 3.1 causes graphical errors

Choose "simple colour" in the main-menu. If you still see graphical errors, check the font size of Windows: it must be small (normal size 96 Ppp). In case, go to: start-> configuration-> control panel-> screen configuration-> font size . The default size is small. The newest version 3.21 we have improved and it works also rather good with large fonts.

Valgetal 3.1 runs slowly or does not work correctly

Valgetal 3.1 can normally also be installed in "older platforms", like 386 with Windows 3.x, but it could take a lot of time to start it up and perhaps the program runs slowly. In that case it would be better to use the Ms-dos version Valgetal 2.4 (Valdgtal), which works fine on almost every Pc and with almost every screen. Valgetal 2.4 is about the same game as Valgetal 3.1: the High Scores of both versions are comparable. Only its layout is less sophisticated.

The Ms-dos program Valgetal 2.4 (Valdgtal) causes error 200 in Windows 95/98

This happened before, but we have solved this problem and since October 1999 the improved Ms-dos version Valgetal 2.4 (Valdgtal) has been included in the software package of Valgetal 3.1. In case, you can download Valdgtal in the following link:
Valdgtal.zip (60 kb)

The Ms-dos program Valdgetal or Valgebra causes error 003 in Windows 95/98

This will happen when you install the Ms-dos based programs Valgetal 2.4 or Valgebra in a directory with a large name. Take care to install these programs in a directory with a name less (or equal) then 8 signs; for example in C:/valdgtal (only 8 letters) or in C:/files/val , and not in , for example, C:/program_files/valgetal (because 'program_files' has 13 signs).

Appearance of Valgetal 3.1

After starting up the program, you can choose to let the program occupy the whole screen, or only a part of the screen. In the main menu you can also choose between "simple" and "sophisticated" colour. According to the author, the most beautiful appearance you get if you let it occupy the whole screen and you choose "sophisticated" colour (if your screen tolerates it). If you want to use it in a school, it's perhaps also better to use the whole screen, so the children will not be distracted by a status bar, unnecessary buttons etc. Another advantage is that you have in this way a 'play rectangle' as large as possible.

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Some extra notes

A detail that could cause confusion: in the game it's not allowed to make multiplication's larger than 999 (very larger numbers should not fit into a block) . If you should do so, then every now and then there will be falling down a * (a "bomb"). This cannot be placed anywhere and will cause a red line popping up.

Also be aware that in the game, in 'Subtracting' and 'Dividing' you may not place two equals numbers above each other. This is only a rule of the game (otherwise the game should be too easy), and in reality you may of course subtract or divide two equals numbers. If you use Valgetal in a school, perhaps it should be a good idea to explain this to your pupils.

We hope that Valgetal and Valgebra will contribute to the learning of maths. Perhaps it will awaken the interest of many children for the beautiful mathematics.

We have decided to give away our educational software to the world, so more children (and adults) can enjoy it. Perhaps it will improve the world a little bit....




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