2019.12.12
 mathlibre-2019.iso  :  iso image of MathLibre-2019
 VM-mathlibre-2019-for-dist.zip : VMware virtual machine (use 3G memory).
 VM-small-mathlibre-2019-for-dist-v2.zip : VMware virtual machine (use 1.5G memory).

 VM-mathlibre-2019-for-kivy.zip : VMware virtual machine with python3 kivy, 
                                  the OpenXM source distribution, and pie-editor
 mathlibre-2019-virtualbox.zip : VirtualBox virtual machine. (VirtualBox and extension toolkit are required.)
 mathlibre-2019-virtualbox3.zip : the same except that audio-device is disabled (use 2G memory)
 mathlibre-2019-virtualbox4.zip : the same except that audio-device is disabled (use 2G memory)
 mathlibre-2019-virtualbox5-6.10-guest-additions.zip: guest-additions for virtual box 6.1.10 are added to virtualbox4.

These virtual machines use the iso image mathlibre-2019.iso
We suppose that the mathlibre-2019.iso is placed at the SAME LEVEL of the folder
VM-mathlibre-2019-for-dist/  or VM-mathlibre-2019-for-kivy/ or ...
See the line 
   ide1:0.filename = "../mathlibre-2019.iso"
of the file "VM-mathlibre-2019-for*/mathlibre-2019.vmx" 

Windows users: please do not forget to expand the zip file.



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The pie-editor (included in *for-kivy.zip) is started from the terminal as
    cd ~/Desktop/pie-editor
    python3 main.py 

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Note: see http://www.math.kobe-u.ac.jp/HOME/taka/2020/c1 (in Japanese) for trouble shoots or visit http://www.math.kobe-u.ac.jp/HOME/taka/2020/keisan-1