Dear Thomas, The easiest way to do this is to use the "System Settings" program.This will enable you to use the compose character key with literally everything on your system.
For instructions go to keyboard layout - How can I enable Compose key? - Ask Ubuntu https://askubuntu.com/questions/70784/how-can-i-enable-compose-keyOnce you've set it up, you can see all the characters that are available to you at
https://cgit.freedesktop.org/xorg/lib/libX11/plain/nls/en_US.UTF-8/Compose.pre On 2019-05-14 4:35 a.m., Thomas Blasejewicz wrote:
Good afternoonI have to enter into a technical text a capital "M" with a short bar on top of it.Some sort of mathematical expression indicating a vector.I know there is something like "composing characters", but I cannot get it right.All I ever get is a diacritical mark either left or right from the M. I would appreciate if someone could point me in the right direction.While googling about this, I also found some talk a "autocorrect options" using : :Yet, I cannot make this work either. I suppose, there is a trick for this one too. Thank you Thomas