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| ANSI Common Lisp 12 Numbers 12.2 Dictionary of Numbers
12.2.77 short-float-epsilon, short-float-negative-epsilon, single-float-epsilon, single-float-negative-epsilon, double-float-epsilon, double-float-negative-epsilon, long-float-epsilon, long-float-negative-epsilon | Constant Variable
Constant Value: implementation-dependent. Description: The value of each of the constants short-float-epsilon, single-float-epsilon, double-float-epsilon, and long-float-epsilon is the smallest positive float of the given format, such that the following expression is true when evaluated: `(not (= (float 1 epsilon) (+ (float 1 epsilon) epsilon)))` The value of each of the constants short-float-negative-epsilon, single-float-negative-epsilon, double-float-negative-epsilon, and long-float-negative-epsilon is the smallest positive float of the given format, such that the following expression is true when evaluated: `(not (= (float 1 epsilon) (- (float 1 epsilon) epsilon)))` Allegro CL Implementation Details: None.

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