result of INV is never more precise than double

9 results were exact to double the precision

20 largest ulp errors (stored in a double)
   0.50000 ulp for INV(0.999999999999999889) = 1.00000000000000022)
   0.50000 ulp for INV(3.99999999999999956) = 0.250000000000000056)
   0.50000 ulp for INV(0.249999999999999972) = 4.00000000000000089)
   0.50000 ulp for INV(1.99999999999999978) = 0.500000000000000111)
   0.50000 ulp for INV(0.124999999999999986) = 8.00000000000000178)
   0.50000 ulp for INV(0.499999999999999944) = 2.00000000000000044)
   0.50000 ulp for INV(7.99999999999999911) = 0.125000000000000028)
   0.50000 ulp for INV(0.49471405240200178) = 2.02136970871287414)
   0.50000 ulp for INV(-0.160345431200486804) = -6.23653566249516)
   0.50000 ulp for INV(-0.682838099199875703) = -1.46447598804425638)
   0.50000 ulp for INV(0.557128052998967949) = 1.79491948864734785)
   0.50000 ulp for INV(-0.500124640393044606) = -1.99950156267866896)
   0.50000 ulp for INV(0.29019680059930697) = 3.44593737055276206)
   0.50000 ulp for INV(-0.732244161798246807) = -1.36566469515331868)
   0.50000 ulp for INV(-0.426553727999878451) = -2.34437055488654611)
   0.50000 ulp for INV(0.90431789479066893) = 1.10580582974251485)
   0.50000 ulp for INV(-0.584928321798450002) = -1.70961118265798739)
   0.50000 ulp for INV(-0.572718525198475659) = -1.7460584143902973)
   0.50000 ulp for INV(-0.477825138203482602) = -2.09281580236607034)
   0.50000 ulp for INV(-0.779150390998759268) = -1.28344926929721881)

<tr><td align=left><a href=INV.res>INV</a></td><td align=right>653</td><td align=right>0.50000</td><td>0.999999999999999889</td><td>1.00000000000000022</td></tr>