result of powx_275 is never more precise than double

1 results were exact to double the precision

20 largest ulp errors (stored in a double)
   0.51389 ulp for powx_275(0.973973848500000017) = 0.93004735986465481)
   0.51311 ulp for powx_275(6.78795284350001804) = 193.767861205119004)
   0.51035 ulp for powx_275(6.46123714649974623) = 169.187441662404069)
   0.51013 ulp for powx_275(6.78704975550001421) = 193.696976075827934)
   0.50994 ulp for powx_275(0.486958263600000718) = 0.138229992792579998)
   0.50979 ulp for powx_275(466.298123899999666) = 21818509.9154076576)
   0.50953 ulp for powx_275(8.53027063300003796) = 363.201578404714553)
   0.50938 ulp for powx_275(0.528896834900001611) = 0.173488288312248384)
   0.50846 ulp for powx_275(5.87886723099999386) = 130.484084673003508)
   0.50677 ulp for powx_275(0.281598492900000219) = 0.0306537348799856904)
   0.50610 ulp for powx_275(0.973973848499999129) = 0.930047359864652479)
   0.50603 ulp for powx_275(1.3417248448353387e-112) = 2.24426698004772766e-308)
   0.50488 ulp for powx_275(0.5912603127000019) = 0.235717325042613113)
   0.50454 ulp for powx_275(1.34720536050313858e-112) = 2.26956672812454635e-308)
   0.50451 ulp for powx_275(1.34374768315445382e-112) = 2.2535840139706365e-308)
   0.50441 ulp for powx_275(1.3444092454645251e-112) = 2.25663644981064444e-308)
   0.50436 ulp for powx_275(9.75062363749996841) = 524.613040918197839)
   0.50418 ulp for powx_275(357.084550139996793) = 10474189.2203455586)
   0.50401 ulp for powx_275(326.297245780002356) = 8174042.13383842446)
   0.50374 ulp for powx_275(0.110424804499999737) = 0.0023357871094621431)

<tr><td align=left><a href=powx_275.res>powx_275</a></td><td align=right>1063</td><td align=right>0.51389</td><td>0.973973848500000017</td><td>0.93004735986465481</td></tr>