
breal_min(+Number, -Result)

   Extracts the lower floating point bound of Number

Arguments
   Number              A number.
   Result              A variable or float.

Type
   Arithmetic

Description
    This predicate is used by the ECLiPSe compiler to expand evaluable
    arithmetic expressions.  So a call to breal_min(Number, Result) is
    equivalent to

    Result is breal_min(Number).

    A bounded real is a real number represented by a lower and upper
    bound in floating point format. This predicate extracts the lower
    bound and unifies it with Result. If Number is not a bounded real,
    the result returned is equivalent to converting it to a bounded real
    first.



Modes and Determinism
   breal_min(+, -) is det

Exceptions
     4 --- Number is not instantiated
    24 --- Number is a not a number.

Examples
   
Success:
      ?- breal_min(0.99__1.01, X).
      X = 0.99

      ?- breal_min(1, X).
      X = 1.0

      ?- breal_min(1.0, X).
      X = 1.0

      ?- breal_min(1_10, X).
      X = 0.099999999999999992

Error:
      ?- breal_min("a", Z).
      number expected in breal_min("a", Z)

      ?- breal_min(2 + 4, Z).
      number expected in breal_min(2 + 4, Z)


See Also
   breal_max / 2, breal / 1, breal / 2, breal_bounds / 3, breal_from_bounds / 3, is / 2
