fluz

(* SML notes *)
when writing in editor, semicolon is not required but when typing in terminal we need
semicolon
val negative_number = ~15  (* Yeah, unary minus uses the 'tilde' symbol *)
(*
- Math.e;
val it = 2.71828182846 : real
- Math.cos (Math.pi/2.0);
val it = 0.0 : real
- Math.sqrt (49.01);