For example, chemists and math-related fields tended to use italic characters to denote specific things, and so they needed a set of italic characters that they could use in.
Isibonelo, ochwepheshe bamakhemikhali nezinkambu ezihlobene nemathematics bebevame ukusebenzisa izinhlamvu zama-italic ukuchaza izinto ezithile, ngakho-ke badinga isethi yezinhlamvu ezi-italic abangazisebenzisa ezimweni lapho bengakwazi ukusebenzisa isitayela se-post-ukweli.