Announce: HP-15C Simulator / Release 3.3.00, Build 5403
01-25-2014, 03:47 AM (This post was last modified: 01-25-2014 03:50 AM by Thomas Klemm.)
Post: #21
 Thomas Klemm Senior Member Posts: 1,447 Joined: Dec 2013
RE: Announce: HP-15C Simulator / Release 3.3.00, Build 5403
(01-24-2014 05:35 AM)RMollov Wrote:
Code:
   009 { 45 20 48  0 } RCL ✕ .0
I'd prefer to see instead:
Code:
   009 { 45 20 .0 } RCL ✕ .0
Because that's more what we see in the display.

Cheers
Thomas
01-25-2014, 04:09 AM (This post was last modified: 01-25-2014 04:12 AM by RMollov.)
Post: #22
 RMollov Member Posts: 259 Joined: Dec 2013
RE: Announce: HP-15C Simulator / Release 3.3.00, Build 5403
Quote:The value of R looks like the earth radius for me. And as a not very well scaled problem.

Greetings
peacecalc
Yes, it is the Earth's radius. What is more real than that?
And very well scaled for the above mentioned calculators.
All HP branded ones give fair enough answer.
Apparently Hewlett Packard did something very well with their solver, which doesn't seem to happen with others.

Regards
01-25-2014, 04:19 AM (This post was last modified: 01-25-2014 04:30 AM by RMollov.)
Post: #23
 RMollov Member Posts: 259 Joined: Dec 2013
RE: Announce: HP-15C Simulator / Release 3.3.00, Build 5403
You are right, Thomas.
01-25-2014, 09:25 AM
Post: #24
 Torsten Junior Member Posts: 10 Joined: Jan 2014
RE: Announce: HP-15C Simulator / Release 3.3.00, Build 5403
(01-25-2014 03:47 AM)Thomas Klemm Wrote:
Code:
   009 { 45 20 48  0 } RCL ✕ .0
I'd prefer to see instead:
Code:
   009 { 45 20 .0 } RCL ✕ .0
Because that's more what we see in the display.

The program files contain the key sequence (key codes) you need to enter and this is
Code:
45 20 48  0
and not
Code:
45 20 .0
Furthermore, in Europe the display shows a comma instead of a period
Code:
45 20 ,0
That is why I do not agree.

Torsten
01-25-2014, 09:38 AM
Post: #25
 Thomas Klemm Senior Member Posts: 1,447 Joined: Dec 2013
RE: Announce: HP-15C Simulator / Release 3.3.00, Build 5403
(01-24-2014 05:35 AM)RMollov Wrote:  Initial Guesses: 0, 1
(...)
WP-34s also struggles at this.
The function is evaluated at 0, 1, 0.5 and then at -50 which leads to:
Not numeric.

Quote:I'm wondering if I'm doing something wrong.
This happens even with these initial guesses: 0, 120.
It appears the solver doesn't handle the situation properly when both guesses are on the same side of the root.

Cheers
Thomas
01-25-2014, 10:04 AM
Post: #26
 Thomas Klemm Senior Member Posts: 1,447 Joined: Dec 2013
RE: Announce: HP-15C Simulator / Release 3.3.00, Build 5403
(01-25-2014 09:25 AM)Torsten Wrote:  The program files contain the key sequence (key codes) you need to enter and this is
Code:
45 20 48  0
and not
Code:
45 20 .0
But then why isn't the key code 47 used for 0?

Quote:Furthermore, in Europe the display shows a comma instead of a period
Code:
45 20 ,0
I'm in Europe and it shows a period. Am I missing something?
Nah, just kidding. I've never noticed this until now as I use the period as radix mark.

Cheers
Thomas
01-25-2014, 11:51 AM
Post: #27
 Torsten Junior Member Posts: 10 Joined: Jan 2014
RE: Announce: HP-15C Simulator / Release 3.3.00, Build 5403
(01-25-2014 10:04 AM)Thomas Klemm Wrote:  But then why isn't the key code 47 used for 0?
OK, this is not fully consistent. But this inconsistency saves one keystroke per digit when editing the program file. ;-)

Torsten
01-26-2014, 10:28 AM
Post: #28
 RMollov Member Posts: 259 Joined: Dec 2013
RE: Announce: HP-15C Simulator / Release 3.3.00, Build 5403
(01-25-2014 03:29 AM)Thomas Klemm Wrote:  I guess it's the solution to a rope around the earth problem:
Sure it is. There are a few non-intuitive problems which I like giving to over-confident people to solve.
Cheers,
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