result of exp is never more precise than double

3 results were exact to double the precision

20 largest ulp errors (stored in a double)
   0.51222 ulp for exp(707.49636855438291) = 1.8271273971595468e+307)
   0.51081 ulp for exp(-705.22003675376664) = 5.3312556679083222e-307)
   0.50974 ulp for exp(6.0326648095000071) = 416.8243080933679)
   0.50884 ulp for exp(0.29204579160000088) = 1.3391643387130219)
   0.50787 ulp for exp(7.5253072620000045) = 1854.3829199689394)
   0.50744 ulp for exp(-9.7145772492999924) = 6.0396629998917776e-05)
   0.50743 ulp for exp(6.0326648094999724) = 416.82430809335347)
   0.50740 ulp for exp(-9.8508472203000181) = 5.2702523447976232e-05)
   0.50738 ulp for exp(706.18049579338617) = 4.9010885681473792e+306)
   0.50733 ulp for exp(708.2535445138825) = 3.8958853771981866e+307)
   0.50644 ulp for exp(7.4563340129999593) = 1730.7913540684813)
   0.50634 ulp for exp(-705.94032007726412) = 2.5942656029161995e-307)
   0.50611 ulp for exp(8.1931367424997745) = 3616.0470841980905)
   0.50596 ulp for exp(704.83274316817597) = 1.2734181122028014e+306)
   0.50569 ulp for exp(705.07380991088473) = 1.6205594914413542e+306)
   0.50546 ulp for exp(6.7879528434999976) = 887.09567803578148)
   0.50524 ulp for exp(490.43178947999934) = 9.8134094857734526e+212)
   0.50523 ulp for exp(706.1048481675823) = 4.5440092242633586e+306)
   0.50521 ulp for exp(709.42643777138323) = 1.2588884250053738e+308)
   0.50470 ulp for exp(-9.840529407700032) = 5.3249113164563025e-05)

<tr><td align=left><a href=exp.res>exp</a></td><td align=right>1333</td><td align=right>0.51222</td><td>707.49636855438291</td><td>1.8271273971595468e+307</td></tr>