This program item allows to edit the options in the file matheass.ini  as there are:


German, English or French.


between 80% and 150%
Normally this must not be changed, unless you are using a small display with height resolution.


Allow multiple windows or only one.
Start program in a window or in full screen mode.

Printing and Grid Lines

These options correspond to the settings in the local menu ( Coordinate System ) of the function plotter and are listed here to allow to save them permanently.


Only to change if the used fonts are not installed on your PC.


In a local installation, the program is stored in the windows program directory and the data in the data directory of the user.

In a portable installation, for example on a USB stick, program and data are stored in the same directory.

To install MatheAss on a USB stick, just copy the folder C:\Program Files\MatheAss on the stick and set in the file ma82.ini the option Portable=true.


The shield symbol on the button Save indicates that in order to save these options you need write access to the program directory. To change the options permanently, start the program bye right-click and choose "Run as administrator".
(With a portable installation, for example on a USB stick, you do not need admin rights to save the options.)

External Language File

The English program texts are also available in an external language file and can there e.g. be translated. To include your own language file in MatheAss, just enter the name of your language file (without txt) under extern  in the file ma82.ini.

Default is italiano  and the file italiano.txt  holds an experimental version of an Italian language file that was translated automatically and is waiting to be corrected by an Italian native speaker.

To display a suitable flag place it in bmp  format with 32x20 pixel and the same name as the language file in the program directory.