NaN's Exist!!

Lo and behold, I managed to produce a NaN in LWM, denoted as: 1F+-0 #| 1F+-0 is single-float not-a-number |#

It appears that these can be tested by the following code:

(defun nanp (v)

(and (numberp v)

(not (or (minusp v)

(zerop v)

(plusp v)))

))

David McClain

Chief Technical Officer

Refined Audiometrics Laboratory

4391 N. Camino Ferreo

Tucson, AZ 85750

phone: 1.520.390.3995

Skype: dbmcclain