result of asinh is never more precise than double

3 results were exact to double the precision

20 largest ulp errors (stored in a double)
   1.49871 ulp for asinh(-0.250782692399997009) = -0.24822571472939331)
   1.01425 ulp for asinh(0.252612316808167592) = 0.249999999999999334)
   1.00733 ulp for asinh(0.125325775241114212) = 0.124999999999998751)
   1.00643 ulp for asinh(1.17520119364379272) = 0.999999999999994449)
   0.99587 ulp for asinh(0.25261231680816576) = 0.249999999999997502)
   0.99180 ulp for asinh(0.12532577524111424) = 0.124999999999998779)
   0.94959 ulp for asinh(1.17520119364380093) = 0.999999999999999556)
   0.94823 ulp for asinh(0.521095305493747052) = 0.499999999999999778)
   0.67572 ulp for asinh(0.125325775241115434) = 0.124999999999999986)
   0.61968 ulp for asinh(0.116007481799999895) = 0.115748845381909396)
   0.61692 ulp for asinh(-0.999999999999999778) = -0.881373587019542937)
   0.59904 ulp for asinh(0.521095305493747274) = 0.499999999999999889)
   0.59151 ulp for asinh(-3.18250363599999986) = -1.87463181766332876)
   0.57952 ulp for asinh(-0.875010530200000081) = -0.790176650174829964)
   0.57398 ulp for asinh(0.672688602200000041) = 0.63014870588157712)
   0.56687 ulp for asinh(8.12578045400001514) = 2.79195389043086006)
   0.56293 ulp for asinh(-888.571940200000313) = -7.48276310965733416)
   0.56055 ulp for asinh(-0.193720938600000281) = -0.192529301190265456)
   0.55802 ulp for asinh(-0.732244161800000404) = -0.678881943696868051)
   0.55618 ulp for asinh(-9.15453677399999854) = -2.91036659498682226)

<tr><td align=left><a href=asinh.res>asinh</a></td><td align=right>1042</td><td align=right>1.49871</td><td>-0.250782692399997009</td><td>-0.24822571472939331</td></tr>