Module Num
val (+/) : num -> num -> num
val add_num : num -> num -> num
val minus_num : num -> num
val (-/) : num -> num -> num
val sub_num : num -> num -> num
val (*/) : num -> num -> num
val mult_num : num -> num -> num
val square_num : num -> num
val (//) : num -> num -> num
val div_num : num -> num -> num
val quo_num : num -> num -> num
val mod_num : num -> num -> num
val (**/) : num -> num -> num
val power_num : num -> num -> num
val abs_num : num -> num
val succ_num : num -> num
val pred_num : num -> num
val is_integer_num : num -> bool
val integer_num : num -> num
val floor_num : num -> num
val round_num : num -> num
val ceiling_num : num -> num
val sign_num : num -> int
val (=/) : num -> num -> bool
val (</) : num -> num -> bool
val (>/) : num -> num -> bool
val (<=/) : num -> num -> bool
val (>=/) : num -> num -> bool
val (<>/) : num -> num -> bool
val eq_num : num -> num -> bool
val lt_num : num -> num -> bool
val le_num : num -> num -> bool
val gt_num : num -> num -> bool
val ge_num : num -> num -> bool
val compare_num : num -> num -> int
val max_num : num -> num -> num
val min_num : num -> num -> num
val string_of_num : num -> string
val approx_num_fix : int -> num -> string
val approx_num_exp : int -> num -> string
val num_of_string : string -> num
val int_of_num : num -> int
val num_of_int : int -> num
val float_of_num : num -> float