Problem with integral on WP 34s

[BINUBALL]

(09-08-2021 03:48 AM)lrdheat Wrote:  That is strange! I tried it on my iPad emulator, and on my DM 42 with the WP 34 loaded into the unit.

My iPad emulated is 34S 3.3T 3913

I’m running the program now on my HP 30b that was converted into a WP 34S, and the integral is taking a long time to converge (perhaps 25 minutes into the integration), and it may be converging on the correct answer. The DM 42, and the IPad 34S 3.3T 3913 quickly produce “0”.

I will let the HP 30b converted unit continue to run a while longer. After it finishes (or I give up), I will check it’s version of the WP 34S software.

I used Windows emulator.

(09-08-2021 05:50 AM)toml_12953 Wrote:  

(09-08-2021 01:43 AM)lrdheat Wrote:  Am I doing something wrong (quite possibly), or am I encountering a bug on the WP 34S?

The integral from -2 to 3 of 1/(3ROOT X) should equal ~.739 (My WP 34S comes up with 0).

I used the following:

LBL ‘F0’
FILL
3ROOT
1/X
RTN

I tried several other alternative programs, and they all produced “0”.

Is that 1/(x^(3/2)) ? If so, the answer is 1.387+1.139 i

https://www.integral-calculator.com/

I think it is 1/(x^(1/3)), Wolfram Alpha gives 4.31068-2.06209 i
https://www.wolframalpha.com/input/?i2d=...om+-2+to+3