Welcome to utop version 2.7.0 (using OCaml version 4.08.1)!
utop[0]> 10;;
- : int = 10
utop[1]> 10.4;;
- : float = 10.4
utop[2]> 's';;
- : char = 's'
utop[3]> True;;
Line 1, characters 0-4:
Error: Unbound constructor True
Hint: Did you mean true?
utop[4]> true;;
- : bool = true
utop[5]> false;;
- : bool = false
utop[6]> max(2,3);;
- : int * int -> int * int = <fun>
utop[7]> if 3 = 4 then "d" else "tt";;
- : string = "tt"
utop[8]> max 4 8;;
- : int = 8
utop[9]> max 8 4;;
- : int = 8
utop[10]> (3,4);;
- : int * int = (3, 4)
utop[11]> (3,4,5);;
- : int * int * int = (3, 4, 5)
utop[12]> let carre x = x * x
;;
val carre : int -> int = <fun>
utop[13]> carre(10);;
- : int = 100
utop[14]> carre 10;;
- : int = 100
utop[15]> (10);;
- : int = 10
utop[16]> carre 10 2;;
Line 1, characters 0-5:
Error: This function has type int -> int
       It is applied to too many arguments; maybe you forgot a `;'.
utop[17]> carre(1,2);;
Line 1, characters 5-10:
Error: This expression has type 'a * 'b but an expression was expected of type
         int
utop[18]> carre 10.0;;
Line 1, characters 6-10:
Error: This expression has type float but an expression was expected of type
         int
utop[19]> 10.0 *. 3.4;;
- : float = 34.
utop[20]> 10.0 *. float_of_int 3.4;;
Line 1, characters 21-24:
Error: This expression has type float but an expression was expected of type
         int
utop[21]> 10.0 *. float_of_int 4;;
- : float = 40.
utop[22]> float_of_int;;
- : int -> float = <fun>
utop[23]> float_of_int 40;;
- : float = 40.
utop[24]> int_of_float;;
- : float -> int = <fun>
utop[25]> int_of_float 14.3;;
- : int = 14
utop[26]> (+);;
- : int -> int -> int = <fun>
utop[27]> (+) 2 4;;
- : int = 6
utop[28]> 2 + 4;;
- : int = 6
utop[29]> max 30 12 * 2;;
- : int = 60
utop[30]> max 30 (12 * 2);;
- : int = 30
utop[31]> sqrt (max (cos 3.14) (sin 3.14));;
- : float = 0.0399080557843504574
utop[32]> 20.e4;;
- : float = 200000.
utop[33]> &&;;
Error: Syntax error
utop[34]> (&&);;
- : bool -> bool -> bool = <fun>
utop[35]> 1 = 3 || 2 = 2;;
- : bool = true
utop[36]> 1 = 3 && 2 = 2;;
- : bool = false
utop[37]> 9 <= 10;;
- : bool = true
utop[38]> 9.0 <= 10.0;;
- : bool = true
utop[39]> 9.0 <= 10;;
Line 1, characters 7-9:
Error: This expression has type int but an expression was expected of type
         float
utop[40]> 3 = 4;;
- : bool = false
utop[41]> 3 == 3;;
- : bool = true
utop[42]> let a  = 10;;
val a : int = 10
utop[43]> a;;
- : int = 10
utop[44]> let b = 3;;
val b : int = 3
utop[45]> if a = 0 then if b = 0 then -1 else 0 else 1;;
- : int = 1