result of log is never more precise than double

1 results were exact to double the precision

20 largest ulp errors (stored in a double)
   0.50448 ulp for log(0.9392673708999999) = -0.06265510026202803)
   0.50358 ulp for log(0.91695941599998665) = -0.086692065066032303)
   0.50223 ulp for log(0.40313953069999603) = -0.90847254693443391)
   0.50170 ulp for log(5.7973529615000414) = 1.7574014274283405)
   0.50098 ulp for log(0.43056139209999272) = -0.84266535877764426)
   0.50063 ulp for log(6.4606049639998799) = 1.8657229610878403)
   0.50063 ulp for log(9.1574530975002606) = 2.2145680938996231)
   0.50061 ulp for log(7.0787569124999408) = 1.9570983149596075)
   0.50050 ulp for log(0.40313953069997893) = -0.90847254693447632)
   0.50039 ulp for log(6.7247843940000296) = 1.9057998646022152)
   0.50038 ulp for log(7.7685543975001092) = 2.0500840978424666)
   0.50037 ulp for log(0.37460865380000247) = -0.98187338779743882)
   0.50035 ulp for log(7.9563015634998893) = 2.0739642641823766)
   0.50034 ulp for log(0.42561435630001226) = -0.85422160961568694)
   0.50031 ulp for log(9.5268377959974053) = 2.2541128468630456)
   0.50030 ulp for log(0.91695941599987785) = -0.086692065066150958)
   0.50028 ulp for log(6.3054371544998) = 1.8414123015890542)
   0.50027 ulp for log(7.0503726184995559) = 1.9530804691153507)
   0.50026 ulp for log(0.64707883420002676) = -0.43528714615417197)
   0.50025 ulp for log(0.54735094730003664) = -0.60266509673052582)

<tr><td align=left><a href=log.res>log</a></td><td align=right>1135</td><td align=right>0.50448</td><td>0.9392673708999999</td><td>-0.06265510026202803</td></tr>