#-(or linux hpux) #.(/ (asinh most-positive-double-float) 4d0)
;; This is more accurate under linux.
#+(or linux hpux) #.(/ (+ (log 2.0d0)
- (log most-positive-double-float)) 4d0))
+ (log most-positive-double-float))
+ 4d0))
(coerce-to-complex-type (float-sign x)
(float-sign y) z))
(t