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HP-15C LE: Error with i ^ -i - Printable Version

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HP-15C LE: Error with i ^ -i - BuSchu - 08-15-2014 08:19 PM

Since one week I'm a proud owner of a HP-15C LE!

I discovered an error in computing of complex numbers not found in the simulator on Windows: If I try to compute i ^ -i I get Error 4.
What does the original HP-15C do with this task? Does it compute the correct value e ^ (pi / 2)?

Regards
Burkhard


RE: HP-15C LE: Error with i ^ -i - Thomas Klemm - 08-15-2014 08:30 PM

Do you happen to have USER activated?

Cheers
Thomas


RE: HP-15C LE: Error with i ^ -i - Mark Hardman - 08-15-2014 08:39 PM

(08-15-2014 08:19 PM)BuSchu Wrote:  Since one week I'm a proud owner of a HP-15C LE!

I discovered an error in computing of complex numbers not found in the simulator on Windows: If I try to compute i ^ -i I get Error 4.
What does the original HP-15C do with this task? Does it compute the correct value e ^ (pi / 2)?

Regards
Burkhard

[ETA: See my correction below.]

On the original 15C, I get 1,0 after a short pause. I immediately get 1,0 on the 15C LE.


RE: HP-15C LE: Error with i ^ -i - Thomas Klemm - 08-15-2014 08:52 PM

(08-15-2014 08:39 PM)Mark Hardman Wrote:  On the original 15C, I get 1,0 after a short pause.

Using the Nonpareil emulator I get 4.8105. Which appears to be the correct answer.


RE: HP-15C LE: Error with i ^ -i - Mark Hardman - 08-15-2014 09:07 PM

(08-15-2014 08:52 PM)Thomas Klemm Wrote:  
(08-15-2014 08:39 PM)Mark Hardman Wrote:  On the original 15C, I get 1,0 after a short pause.

Using the Nonpareil emulator I get 4.8105. Which appears to be the correct answer.

Ugh. Forgot to SF 8.

On both the original 15C and 15C LE the answer is 4.8105.

You are right. It is most likely that the OP was in User mode trying to execute a non-existent LBL D.


RE: HP-15C LE: Error with i ^ -i - BuSchu - 08-15-2014 09:56 PM

(08-15-2014 09:07 PM)Mark Hardman Wrote:  
(08-15-2014 08:52 PM)Thomas Klemm Wrote:  Using the Nonpareil emulator I get 4.8105. Which appears to be the correct answer.

Ugh. Forgot to SF 8.

On both the original 15C and 15C LE the answer is 4.8105.

You are right. It is most likely that the OP was in User mode trying to execute a non-existent LBL D.

Yes you are right! It was the User mode! Thank's!

Regards
Burkhard