HP 15C and INT(1/√(1-x),0,1)

[Dieter]

(01-12-2018 04:18 AM)JimP Wrote:  I tried the DM15 (SwissMicros) with FIX2 and received the 1.99 answer within 30 seconds -- clearly faster. Then thought I'd try to split the difference between your tests with FIX3. The machine shut down before it could give an answer, 5 minutes later...

For the record, here are the results for the HP35s Integration routine. Here the function has been entered as an equation.

FIX 2 returns 1,98 ±0,02 in about 7 seconds.
FIX 3 returns 1,999 ±0,002 in about 1:35 minutes.

So the HP35s seems to have an improved algorithm. OK, it is much faster than the original 15C, but I especially like the good error estimates.

Dieter