Options

This program item allows you to edit the options in the file ma90.ini :

Language:

German, English, French or one of the 4 external language files.

Size:

between 80% and 150%
Normally you do not need to change this unless you are using a small display with height resolution.

Layout:

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

Printing and gridlines:

These options correspond to the settings in the function plotters with the key .
They are listed here so that you can permanently save your preferred settings.

Fonts:

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

Colors and line widths

All parts of the program with 2D or 3D graphics access this list of colors and line widths:

The 11th color (B for background) is used for the surfaces in the Special Lines in a Triangle , Integral Calculus  and Linear Optimization sections.
To change a color you can use the left mouse button to scroll through a list of 24 predefined colors. Right-click to scroll backwards.

Directories:

In a local installation, the program is stored in the Windows program directory and the data in the user's data directory.

In a portable installation, e.g. 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 9.0 on the stick and set the option Portable=true  in the file ma90.ini.

The title of the data directory  is underlaid with a link to Windows Explorer to make it easier to maintain your own data files.

Default:

Reset language, fonts and scaling to the initial values.

Export:

The program texts are exported to the clipboard in the currently set language.
How to use this to create your own language version of MatheAss is described under Handling/Translation.

Save:

The shield symbol on the Save   button indicates that in order to save these options you need write access to the program directory. The program therefore asks for the admin password.