>From mbian...@foveal.com Fri Dec 5 14:58:42 2014 > > u stands for "basic unit" ... > > From https://www.gnu.org/software/groff/manual/html_node/Measurements.html > > gtroff (like many other programs) requires numeric parameters to > specify various measurements. Most numeric parameters9 may have a > measurement unit attached. These units are specified as a single > character that immediately follows the number or expression. Each of > these units are understood, by gtroff, to be a multiple of its basic > unit. So, whenever a different measurement unit is specified gtroff > converts this into its basic units. This basic unit, represented by a > aCu', is a device dependent measurement, which is quite small, ranging > from 1/75th to 1/72000th of an inch. The values may be given as > fractional numbers; however, fractional basic units are always rounded > to integers. > : > ((the available units explained))
Thank you. Is this included into any of the man pages. I tried to find, but couldn't, but I haven't searched all of groff man pages. Many thanks Anton