How I can change the format of unit one DM42/Free42

[fs5qc]

Can you help me I can not find how to change the unit format on Free42.

I don’t want to deal with a answer with a E.

[rprosperi]

The "E" indicates powers of 10.

Suggest you review the User Manual, which can be found here:

https://literature.hpcalc.org/community/hp42s-om-en.pdf

The 42S is a sophisticated and powerful device, and you'll need to spend a lot of time exploring it before you'll understand many of it's capabilities, which is much easier if you follow the manual. If things are still unclear after reading that on whatever topic you are exploring, feel free to post questions, but please respect other peoples time and attention by putting in some effort yourself before asking folks here to answer your questions.

[fs5qc]

I know is power of 10 but how I can get simple answer ?

(01-08-2021 03:51 AM)rprosperi Wrote:  The "E" indicates powers of 10.

Suggest you review the User Manual, which can be found here:

https://literature.hpcalc.org/community/hp42s-om-en.pdf

The 42S is a sophisticated and powerful device, and you'll need to spend a lot of time exploring it before you'll understand many of it's capabilities, which is much easier if you follow the manual. If things are still unclear after reading that on whatever topic you are exploring, feel free to post questions, but please respect other peoples time and attention by putting in some effort yourself before asking folks here to answer your questions.

[rprosperi]

(01-08-2021 03:54 AM)fs5qc Wrote:  I know is power of 10 but how I can get simple answer ?

What are you trying to calculate?

What does simple mean?

What have you tried, other than asking someone to answer your question?

You have not provided enough information to provide any useful answers.

Again I suggest you read the manual, then ask more specific questions which you can't find explained there.

[fs5qc]

I am trying to do the program on this video

https://youtu.be/p-A31vAeVrQ

(01-08-2021 04:03 AM)rprosperi Wrote:  

(01-08-2021 03:54 AM)fs5qc Wrote:  I know is power of 10 but how I can get simple answer ?

What are you trying to calculate?

What does simple mean?

What have you tried, other than asking someone to answer your question?

You have not provided enough information to provide any useful answers.

Again I suggest you read the manual, then ask more specific questions which you can't find explained there.

[rprosperi]

(01-08-2021 04:07 AM)fs5qc Wrote:  I am trying to do the program on this video

Post your code, the exact steps you are following, and what the expected vs. actual results are. Don't expect people to go watch a video and then have to guess what you may not have followed properly; make it easy for people here to see exactly what you are doing and then members here will be able to find your mistakes and explain how to proceed.

And... please read the manual.

[fs5qc]

I read the 3 manual available to me the Free42 the old HP 42s and the DM42S

00 { 44-Byte Prgm }
01▸LBL "VOL"
02 MVAR "V"
03 MVAR "W"
04 MVAR "L"
05 MVAR "H"
06 STO "W"
07 STO "L"
08 STO "H"
09 RCL "L"
10 RCL "H"
11 ×
12 RCL× "W"
13 STO "V"
14 RCL "V"
15 END

(01-08-2021 04:18 AM)rprosperi Wrote:  

(01-08-2021 04:07 AM)fs5qc Wrote:  I am trying to do the program on this video

Post your code, the exact steps you are following, and what the expected vs. actual results are. Don't expect people to go watch a video and then have to guess what you may not have followed properly; make it easy for people here to see exactly what you are doing and then members here will be able to find your mistakes and explain how to proceed.

And... please read the manual.

[fs5qc]

I go on the solver and I do w=5 L=5 H=5 and ask the answer for the variable V I get 1,e4374 but I should get 125

(01-08-2021 04:22 AM)fs5qc Wrote:  I read the 3 manual available to me the Free42 the old HP 42s and the DM42S

00 { 44-Byte Prgm }
01▸LBL "VOL"
02 MVAR "V"
03 MVAR "W"
04 MVAR "L"
05 MVAR "H"
06 STO "W"
07 STO "L"
08 STO "H"
09 RCL "L"
10 RCL "H"
11 ×
12 RCL× "W"
13 STO "V"
14 RCL "V"
15 END

(01-08-2021 04:18 AM)rprosperi Wrote:  Post your code, the exact steps you are following, and what the expected vs. actual results are. Don't expect people to go watch a video and then have to guess what you may not have followed properly; make it easy for people here to see exactly what you are doing and then members here will be able to find your mistakes and explain how to proceed.

And... please read the manual.

[Didier Lachieze]

So, you want to calculate a volume, this is the first example in the HP 42S manual chapter about the Solver. Please see the detailed explanations on pages 179-183. It's not a matter of format, your program is not correct, check with the program example in the manual.

[Peet]

(01-08-2021 03:54 AM)fs5qc Wrote:  I know is power of 10 but how I can get simple answer ?

I don't realy understand your question. In which other format would you like this number (with almost 6000 digits) to be displayed?

[Steve Simpkin]

(01-08-2021 04:35 AM)fs5qc Wrote:  I go on the solver and I do w=5 L=5 H=5 and ask the answer for the variable V I get 1,e4374 but I should get 125

(01-08-2021 04:22 AM)fs5qc Wrote:  I read the 3 manual available to me the Free42 the old HP 42s and the DM42S

00 { 44-Byte Prgm }
01▸LBL "VOL"
02 MVAR "V"
03 MVAR "W"
04 MVAR "L"
05 MVAR "H"
06 STO "W"
07 STO "L"
08 STO "H"
09 RCL "L"
10 RCL "H"
11 ×
12 RCL× "W"
13 STO "V"
14 RCL "V"
15 END

Your program is entered wrong. Try entering the following instead. It is from page 180 in the HP-42S Owner's Manual.

LBL "VOL"
MVAR "L"
MVAR "W"
MVAR "H"
MVAR "V"
RCL "L"
RCL* "W"
RCL* "H"
RCL- "V"
END

[Logan]

To change the display format, simply do shift + DISP (above the E key). Then select the type of display you would like (FIX, SCI, ENG, ALL). If one of the first three, then enter the number of digits you'd like to see after the radix, and press Enter.

I have a video on it here, together with a playlist of HP42 functions:
https://www.youtube.com/watch?v=dHMhIKN-...o5&index=3

[fs5qc]

I tried the fix display mode but I still get 1,e4374 I don’t understand why

(01-08-2021 11:53 AM)Logan Wrote:  To change the display format, simply do shift + DISP (above the E key). Then select the type of display you would like (FIX, SCI, ENG, ALL). If one of the first three, then enter the number of digits you'd like to see after the radix, and press Enter.

I have a video on it here, together with a playlist of HP42 functions:
https://www.youtube.com/watch?v=dHMhIKN-...o5&index=3

[Peet]

(01-08-2021 12:31 PM)fs5qc Wrote:  I tried the fix display mode but I still get 1,e4374 I don’t understand why

Because there is no mode which can display over 4000 digits

[fs5qc]

Yes but the answer should be 125 not 1,e4374

(01-08-2021 12:34 PM)Peet Wrote:  

(01-08-2021 12:31 PM)fs5qc Wrote:  I tried the fix display mode but I still get 1,e4374 I don’t understand why

Because there is no mode which can display over 4000 digits

[Massimo Gnerucci]

(01-08-2021 12:36 PM)fs5qc Wrote:  Yes but the answer should be 125 not 1,e4374

(01-08-2021 12:34 PM)Peet Wrote:  Because there is no mode which can display over 4000 digits

Then there's a difference between what you entered and what's written in the listing.

[fs5qc]

I am not sure is a program for the volume if I input W=5 H=5 L=5 I should get V=125

(01-08-2021 12:46 PM)Massimo Gnerucci Wrote:  

(01-08-2021 12:36 PM)fs5qc Wrote:  Yes but the answer should be 125 not 1,e4374

Then there's a difference between what you entered and what's written in the listing.

[grsbanks]

(01-08-2021 12:36 PM)fs5qc Wrote:  Yes but the answer should be 125 not 1,e4374

You were already informed that you had entered the program incorrectly. You cannot expect to get correct results with an incorrect program. What you are doing here is pouring antifreeze into a glass and asking why you don't have something that looks and tastes like orange juice.

[fs5qc]

(01-08-2021 08:10 AM)Steve Simpkin Wrote:  

(01-08-2021 04:35 AM)fs5qc Wrote:  I go on the solver and I do w=5 L=5 H=5 and ask the answer for the variable V I get 1,e4374 but I should get 125

Your program is entered wrong. Try entering the following instead. It is from page 180 in the HP-42S Owner's Manual.

LBL "VOL"
MVAR "L"
MVAR "W"
MVAR "H"
MVAR "V"
RCL "L"
RCL* "W"
RCL* "H"
RCL- "V"
END

Why no * on RCL "L" ?

[grsbanks]

(01-08-2021 01:14 PM)fs5qc Wrote:  Why no * on RCL "L" ?

Because you're starting out with the value in that variable. You're not multiplying something else by it.

Please see the section of the manual devoted to register arithmetic.