Wacom input drivers

I bought a Wacom Intuos CTL-4100, since I need to draw some schemes during online meetings and I am really bad with the mouse. I installed libwacom and xournalpp from SBo.  Everything works as it should on Slackware -current, however it does not work on 14.2.
Read the rest of this entry »


Venn diagrams online

I’ve been preparing some figures, where I need to include Venn diagrams. I am looking to make them proportional to the values. So far, I have not found a way to do this in Gnumeric, WPS Office LibreOffice or OpenOffice.org. I guess, I should find the time to learn a little bit more of R. Meanwhile, I’ve been searching for a quick solution online.

Read the rest of this entry »


LILO and nvme

I recently upgraded to a 1 TB NVME drive and I have Windows 10 on it. The computer boots by default from another disk, a standard SSD, where Slackware -current is installed with LILO. The problem is that selecting Windows from LILO does not boot it. The screen just stays blank. If I specify in the BIOS that the NVME has boot priority, it boots fine.
Read the rest of this entry »


Keep lines thickness in Inkscape

I am preparing some figures in Inkscape. Something that always gets on my nerves is fixing lines (border) width when scaling objects. The solution is quite simple and actually obvious.
Read the rest of this entry »


Shorten contents of spreadsheet cells

I have a spreadsheet file with a list of species’ Latin names. I want to automatically create abbreviations for each species, by shortening both the genus and specific epithet to a certain number of characters. Here’s how to do it.
Read the rest of this entry »