Long vowels are indicated with macrons. The letters with diacritics and macrons are mostly upheld in educational or formal writing. Modern edited texts often use macrons with long vowels, however. They wrote the language down using Latin script with macrons over the vowels. The language does not heavily rely on the use of macrons to lengthen their vowels. A version of the legislation that includes macrons is, however, offered by the commission. Macrons over vowels were rarely used to indicate long vowels. Historical figures are given surname first and with macrons, if available. In physics, macrons are microscopic (dust-sized) particles, accelerated to high speeds.