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numberp [Function]

numberp object => generalized-boolean

Arguments and Values::

object--an object.

generalized-boolean--a generalized boolean.

Description::

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

Examples::

      (numberp 12) =>  true
      (numberp (expt 2 130)) =>  true
      (numberp #c(5/3 7.2)) =>  true
      (numberp nil) =>  false
      (numberp (cons 1 2)) =>  false
     

Notes::

      (numberp object) == (typep object 'number)