CLHS: Section 6.1.3.4

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## 6.1.3.4 Examples of MAXIMIZE and MINIMIZE clauses

     (loop for i in '(2 1 5 3 4)
           maximize i)
    =>  5
     (loop for i in '(2 1 5 3 4)
           minimize i)
    =>  1

    ;; In this example, FIXNUM applies to the internal variable that holds
    ;; the maximum value.
     (setq series '(1.2 4.3 5.7))
    =>  (1.2 4.3 5.7)
     (loop for v in series
           maximize (round v) of-type fixnum)
    =>  6

    ;; In this example, FIXNUM applies to the variable RESULT.
     (loop for v of-type float in series
           minimize (round v) into result of-type fixnum
           finally (return result))
    =>  1

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