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12.2.55 rationalp [Function]

rationalp object => generalized-boolean

Arguments and Values::

object—an object.

generalized-boolean—a generalized boolean.

Description::

Returns true if object is of type rational; otherwise, returns false.

Examples::
      (rationalp 12) =>  true
      (rationalp 6/5) =>  true
      (rationalp 1.212) =>  false
See Also::

rational (Function)

Notes::
      (rationalp object) == (typep object 'rational)