result of asinh is never more precise than double 3 results were exact to double the precision 20 largest ulp errors (stored in a double) 1.25479 ulp for asinh(0.25261231680816826) = 0.24999999999999992) 1.01425 ulp for asinh(0.25261231680816759) = 0.24999999999999933) 1.00733 ulp for asinh(0.12532577524111421) = 0.12499999999999875) 0.99587 ulp for asinh(0.25261231680816576) = 0.2499999999999975) 0.99180 ulp for asinh(0.12532577524111424) = 0.12499999999999878) 0.94823 ulp for asinh(0.52109530549374705) = 0.49999999999999978) 0.67572 ulp for asinh(0.12532577524111543) = 0.12499999999999999) 0.61968 ulp for asinh(0.1160074817999999) = 0.1157488453819094) 0.61692 ulp for asinh(-0.99999999999999978) = -0.88137358701954294) 0.59904 ulp for asinh(0.52109530549374727) = 0.49999999999999989) 0.59151 ulp for asinh(-3.1825036359999999) = -1.8746318176633288) 0.58440 ulp for asinh(629.3796759999999) = 7.1378825047212562) 0.57952 ulp for asinh(-0.87501053020000008) = -0.79017665017482996) 0.57526 ulp for asinh(-3.1825036360000154) = -1.8746318176633334) 0.57398 ulp for asinh(0.67268860220000004) = 0.63014870588157712) 0.56687 ulp for asinh(8.1257804540000151) = 2.7919538904308601) 0.56293 ulp for asinh(-888.57194020000031) = -7.4827631096573342) 0.56055 ulp for asinh(-0.19372093860000028) = -0.19252930119026546) 0.55802 ulp for asinh(-0.7322441618000004) = -0.67888194369686805) 0.55618 ulp for asinh(-9.1545367739999985) = -2.9103665949868223) asinh10421.254790.252612316808168260.24999999999999992