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) 0.55726 ulp for exp(0.981195265500000136) = 2.66764287861071381) 0.55433 ulp for exp(0.981195265500001468) = 2.66764287861071736) 0.55065 ulp for exp(0.37470194609999985) = 1.4545578133740884) 0.54930 ulp for exp(0.260060898099999771) = 1.29700906964881479) 0.54111 ulp for exp(0.403139530700000026) = 1.49651568697793058) 0.54023 ulp for exp(0.374701946100000294) = 1.45455781337408929) 0.54020 ulp for exp(0.374701946100000904) = 1.45455781337409018) 0.53673 ulp for exp(0.374701946100063188) = 1.45455781337418077) 0.53499 ulp for exp(0.547350947300000112) = 1.72866761544845726) 0.52983 ulp for exp(0.99999999999999889) = 2.71828182845904198) 0.52925 ulp for exp(0.59829337660000026) = 1.81901178181759926) 0.52812 ulp for exp(0.976009937399999972) = 2.6538460764181302) 0.52658 ulp for exp(0.062494734899999918) = 1.06448885426283812) 0.52523 ulp for exp(0.647078834199999675) = 1.90995338155912142) 0.52468 ulp for exp(0.598293376600001481) = 1.81901178181760148) 0.52314 ulp for exp(0.430561392100000162) = 1.53812077006488268) 0.52135 ulp for exp(0.648630719799999977) = 1.91291971181591025) 0.51979 ulp for exp(0.647078834199999564) = 1.90995338155912098) 0.51962 ulp for exp(1.00000000000000133) = 2.71828182845904909) 0.51867 ulp for exp(0.12095392999999996) = 1.12857291781533497)