Coursera-ProgrammingLanguages
Solutions to Coursera-Programming Languages Part A & B & C.
Home page of Coursera-Programming Languages
Programming Languages Part A: https://www.coursera.org/learn/programming-languages
Programming Languages Part B: https://www.coursera.org/learn/programming-languages-part-b
Programming Languages Part C: https://www.coursera.org/learn/programming-languages-part-c
Reference
sml document: https://smlfamily.github.io/Basis/manpages.html
racket document: https://racket-lang.org/
the racket guide: The Racket Guide