Casio fx-991EX vs Hp 50g speed difference
|
07-14-2018, 01:45 AM
Post: #4
|
|||
|
|||
RE: Casio fx-991EX vs Hp 50g speed difference
(07-13-2018 08:50 PM)Tugdual Wrote: Found something weird. The function e^-x is not very well-behaved for integration over the interval [0, 500], being close to zero for most of it. Everything happens in a small interval near 0, and that kind of thing makes some numerical integrators converge rather slowly. On my HP-42S, which I'm guessing uses the same Romberg integration algorithm as the RPL numerical integrator, the integral in question takes 2047 evaluations of the function (with ACC=0, which is full accuracy), taking 4 minutes and 4 seconds. |
|||
« Next Oldest | Next Newest »
|
User(s) browsing this thread: 1 Guest(s)