Calculating e^x-1 on classic HPs

[emece67]

(01-14-2016 01:48 PM)Dieter Wrote:  I did a few test runs on a 34s in SP mode with 100000 random numbers each. About 45% were exact, and another 45% was within ±1 ULP. Another 9% was ±2 ULP and the rest had larger errors. So accuracy varies a bit more than with the method I suggested (90% vs. 99,5% within ±1 ULP).

I'm really curious, how do you do such tests?