ISO 80000-2:2009 gives general information about mathematical signs and symbols, their meanings, verbal equivalents and applications. The recommendations in ISO 80000-2:2009 are intended mainly for use in the natural sciences and technology, but also appl
DS/EN ISO 80000-2:2013 history
2013DS/EN ISO 80000-2:2013 Quantities and units - Part 2: Mathematical signs and symbols to be used in the natural sciences and technology