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SML is a functional programming language developed in the early 1980s. It is based on the ML programming language, which is a dialect of LISP. SML is a statically typed language, meaning that all variables must be declared before they can be used. This can be seen as a benefit or a hindrance, depending on the programmer's preferences. SML is widely used in academia, especially in the field of computer science. It is also used in industry, although not as much as some other languages. Many modern languages, such as Scala, OCaml, and Haskell, have been influenced by ML and SML. SML is a powerful language that is well suited for many tasks. However, it can be challenging to learn, especially for those who are new to functional programming.