result of log10 is never more precise than double

1 results were exact to double the precision

20 largest ulp errors (stored in a double)
   1.51332 ulp for log10(0.999999968847147147) = -1.35295123003145233e-08)
   1.50280 ulp for log10(1.00000003221592659) = 1.39911989234060828e-08)
   1.50090 ulp for log10(0.59829337660000792) = -0.223085804983442576)
   1.49919 ulp for log10(0.999999932352330867) = -2.93790104118029951e-08)
   1.46044 ulp for log10(0.598293376599999815) = -0.22308580498344846)
   1.30679 ulp for log10(1.00000003220962341) = 1.39884614871149588e-08)
   1.27348 ulp for log10(0.99999993379279839) = -2.87534232733171523e-08)
   1.00059 ulp for log10(1.77827941003890655) = 0.249999999999996003)
   0.99120 ulp for log10(0.999999991612161909) = -3.64279181319343704e-09)
   0.98713 ulp for log10(1.7782794100389161) = 0.24999999999999839)
   0.93356 ulp for log10(0.999999999999999778) = -9.64327466553287333e-17)
   0.89649 ulp for log10(0.999999991804882971) = -3.5590941190165535e-09)
   0.87083 ulp for log10(1.00000000000001621) = 7.03959050583893817e-15)
   0.82490 ulp for log10(0.999999968848722109) = -1.35288283028211902e-08)
   0.82126 ulp for log10(1.00000001189031118) = 5.16389650292810609e-09)
   0.81099 ulp for log10(0.999999991613898742) = -3.64203751624277286e-09)
   0.79676 ulp for log10(1.00000000000221845) = 9.63459571832320299e-13)
   0.78993 ulp for log10(1.77827941003892298) = 0.25)
   0.77425 ulp for log10(1.00000003299223583) = 1.43283457312116292e-08)
   0.74999 ulp for log10(1.3335214321640716) = 0.125000000000243444)

<tr><td align=left><a href=log10.res>log10</a></td><td align=right>1285</td><td align=right>1.51332</td><td>0.999999968847147147</td><td>-1.35295123003145233e-08</td></tr>