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)
   0.50626 ulp for powx_275(352.21748617999992) = 10086256.564560123)
   0.50451 ulp for powx_275(1.3437476831544538e-112) = 2.2535840139706365e-308)
   0.50401 ulp for powx_275(326.29724578000236) = 8174042.1338384245)
   0.50321 ulp for powx_275(357.34462719999925) = 10495181.559348326)
   0.50320 ulp for powx_275(1.3445460990551986e-112) = 2.2572682178924773e-308)
   0.50261 ulp for powx_275(338.11509130000138) = 9014207.0059173778)
   0.50236 ulp for powx_275(0.83026555380000033) = 0.59957954135773939)
   0.50219 ulp for powx_275(8.9874289279999307) = 419.2736216054667)
   0.50216 ulp for powx_275(9.7764443580000187) = 528.44228933597515)
   0.50214 ulp for powx_275(6.7879528435000278) = 193.7678612051198)
   0.50204 ulp for powx_275(1.3471203167726363e-112) = 2.2691727608376974e-308)
   0.50192 ulp for powx_275(6.0326648095000817) = 140.08779113671278)
   0.50192 ulp for powx_275(489.59741096000033) = 24949253.716662914)
   0.50181 ulp for powx_275(7.9027419129998835) = 294.36688171100303)
   0.50179 ulp for powx_275(6.8046527894999596) = 195.08164882762196)
   0.50177 ulp for powx_275(0.52889683490000416) = 0.17348828831225072)
   0.50157 ulp for powx_275(0.96322698520000261) = 0.90209808899655441)
   0.50144 ulp for powx_275(9.7764443580001839) = 528.4422893359997)
   0.50142 ulp for powx_275(0.48695826359999844) = 0.13822999279257825)
   0.50140 ulp for powx_275(332.76310948000287) = 8627236.9880141504)

<tr><td align=left><a href=powx_275.res>powx_275</a></td><td align=right>1063</td><td align=right>0.50626</td><td>352.21748617999992</td><td>10086256.564560123</td></tr>