Jochen wrote on 14-Jan-2021, with regard to HP 40gs and 39gs Factory Reset.
Tried the 3-key restart, no reaction of the 39gs.. As additional info: both, the AA batteries and the CR2032 button battery were empty; I.e. the calculator was really dead. Perhaps that’s why it didn’t work. The screen is off. (read...)

Anonymous wrote on 07-Jan-2021, with regard to HP 50g.
(read...)

JIM YU wrote on 06-Jan-2021, with regard to Kuala Lumpur HP Calculator Resellers.
I like to purchase a new HP50G calculator...please help (read...)

Anonymous wrote on 06-Jan-2021, with regard to hp 12c (platinum) - Increasing Annuities.
In example 1 above, using the 12C Platinum , step 5 does not work for me. The PMT is not discounted by 7%, there is no division that happens after entering DIVIDE. Also the XY key toggles between the result for i (4.67) and the PMT (8500) Calc in END mode. Any ideas? (read...)

Clay wrote on 03-Jan-2021, with regard to HP 41cx Emulator.
I find the same problem - turning off true type doesn't persist. I did find that if you toggle the size button in settings from large to medium and back to large, the display is corrected. A little annoying to have to do this, but it does work. (read...)

In replying to Ron Madsen who on 14-Sep-2019 wrote: Have used the great V41 for years - ending use now because on Windows 10, the emulator does not save the setting of the font. I turn off TrueType font because digits extend beyond right edge of display. When I re-invoke V41, it is back to using TrueType fonts again. I have been unable to fix this problem.

Clay wrote on 03-Jan-2021, with regard to HP 41cx Emulator.
I find the same problem - turning off true type doesn't persist. I did find that if you toggle the size button in settings from large to medium and back to large, the display is corrected. A little annoying to have to do this, but it does work. (read...)

In replying to Martin K. Sturzenegger who on 22-Nov-2019 wrote: I'm using V41R8 and install it in my user directory (C:\Users\marti\Progr\HP41R8) and it works in Win 10 (Options --> More Settings --> TTF off --> and it's still off)

Just The Facts wrote on 30-Dec-2020, with regard to Bowmar - First Electronic Calculator Made In USA.
The Bowmar 901 is hardly the first electronic calculator made in the USA. That distinction goes to the Mathatronics Mathatron 4-24 and 8-48 calculators, introduced in 1963. That is nearly 8 years before the Bowmar 901 came out. The 901 was perhaps the first shirt-pocketable battery powered electronic calculator made inthe USA, as clearly the 80-pound Mathatron, and other US made electronic calculators made with discrete transistor circuitry prior to 1971, like the Friden EC-130/132, Monroe EPIC 2000/3000, Wang Labs LOCI 1 & 2, and 300-Series, Wyle Labs WS-01/WS-02 and many others, would hardly fit in a shirt pocket, ... (read...)

Anonymous wrote on 22-Dec-2020, with regard to HP 39gs Self Test.
history? (read...)

SFMO wrote on 12-Dec-2020, with regard to HP Calculator Manual.
Trying to find a manual for a HP 20S scientific calculator. preferably downloadable PDF. (read...)

Anonymous wrote on 09-Dec-2020, with regard to Bowmar - First Electronic Calculator Made In USA.
Mine still works after 46 years. LEDs all light. Case is in. Fair condition. Not sure what it would be worth to a collector. (read...)

Anonymous wrote on 30-Nov-2020, with regard to Blaise Pascal - first digital calculating machine.
Vector and rc Allen. Both over90 years old (read...)

In replying to Anonymous who on 28-Dec-2017 wrote: I'm not surprised to see that you choose to remain anonymous.

Mario Lopes wrote on 25-Nov-2020, with regard to HP 8s.
I would like to buy an 8S hp calculator. Could someone tell me where i could find it for sale? Thank you. (read...)

Tom Lake wrote on 19-Nov-2020, with regard to HP 41cx Emulator.
Does this allow use of ROMs available on the net such as the Advantage Pac? (read...)

MArio Lopes wrote on 19-Nov-2020, with regard to Buy from Participating HP Calculator Resellers.
Hi there. Is there any HP 8S calculator for sale? Thank you. (read...)

Anonymous wrote on 19-Nov-2020, with regard to Changing the HP10BII Periods per Year Setting.
I think the easiest way is to open the battery compartment and push a pin into the reset pin hole. (read...)

In replying to Anonymous who on 18-Nov-2020 wrote: How do I turn the RAD on the front face of the 10bII off?

Anonymous wrote on 18-Nov-2020, with regard to Changing the HP10BII Periods per Year Setting.
How do I turn the RAD on the front face of the 10bII off? (read...)

Joseph wrote on 12-Nov-2020, with regard to How to install HP 10BII Emulator.
Works great for me with Windows 10 (read...)

Jon wrote on 09-Nov-2020, with regard to hp 12c (platinum) - Changing the Display from a Comma to a Decimal Point.
Did not work. Is there another way (read...)

In replying to Anonymous who on 01-Sep-2017 wrote: The instructions did not work for mine also!

Wow 2014 wrote on 28-Oct-2020, with regard to Leonardo da Vinci - first conceived mechanical calculator .
wow 2014 (read...)

In replying to Ja-Crispy who on 02-Sep-2014 wrote: I LOVE THIS ARTICLE IT IS THE BEST

Robert wrote on 19-Oct-2020, with regard to HP 41CX.
need a replacement battery pack for this calculator. HP 41 CX rechargeable battery pack (read...)

Berkant Atay wrote on 16-Oct-2020, with regard to HP50g Full Specifications.
You need a Raspberry Pi, Raspbian OS, and Python running on it. (read...)

In replying to Tlio Cunha who on 06-Nov-2013 wrote: I need more system rpl programming information for upgrade my robotics projects. All HP48 _ HP50G controled. In this site www.roboticatulio.com Thank you Tulio

Andrzej Fesnak wrote on 15-Oct-2020, with regard to HP Financial Calculators.
Andrzej Fesnak niedz., 24 maj, 20:29 do investorrelations Hi, Either I can’t find the real contact info or there is no contact info on websites. It will be great if someone could help me with the question: Is it possible to obtain an emulator HP10BIIPlus and integrate it with the Moodle Platform? Does it work in any way? I’ll be grateful for your help. Greetings. (read...)

Ryan wrote on 11-Oct-2020, with regard to HP 10bII+ Emulator.
Thank you, thank you, thank you!!!!!! I wish I came back here much earlier. I have tried to find other ways to execute the file such as CrossOver, but this is a simple and easy way to use the HP10BII+. Thank you! (read...)

In replying to Anonymous who on 07-Jun-2020 wrote: Do try using Wineskin Winery (1.8.4) to launch the emulator. It works with MacOS (10.15) Catalina. Wineskin Winery is available at [URL] github.com/Gcenx/WineskinServer/tree/master/Winery

Felicity Shires wrote on 09-Oct-2020, with regard to HP Calculator Manual.
hey im in (read...)

Zwi wrote on 07-Oct-2020, with regard to HP 41cx Emulator.
[XEQ] [ALPHA] Then enter the correct sequence of characters of the operation, e.g. "FS?C" using the blue key legends [ALPHA] Now the calculator will prompt you to input the Flag number. (read...)

In replying to Gene who on 26-Jul-2020 wrote: How do you enter the following program lines? SF?C 06 FC?C 22

Anonymous wrote on 28-Sep-2020, with regard to HP Prime.
where can I get the special micro A - micro B USB data cable for sending data from one HP Prime to another HP Prime? (read...)

Anonymous wrote on 27-Sep-2020, with regard to hp 10bII - Tutorial.
Try making the PMT default to 1 by pressing 1 --> gold key (down arrow) --> PMT (read...)

In replying to Khabazela who on 30-Mar-2017 wrote: I am using HP 10bII the problem is when I am calculating the following Example 1: What is the FV of $100 after 3 years if the interest rate is 26 percent? First, clear by pressing . Next, enter the following data: 3 26 100 0 To determine the FV simply press and the FV of -$200.04 is displayed. I get $106.64 what is the problem. Please help me by showing me the mistake I have made.

Naeem Malik wrote on 18-Sep-2020, with regard to Emulator for Windows.
Do you have window or Android emulator for HP17BII? (read...)

George wrote on 13-Sep-2020, with regard to HP 10bII+ Emulator.
The HP 10bII training page does not work. "404 - File or directory not found. The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable." (read...)

Anonymous wrote on 09-Sep-2020, with regard to HP 10bII+ Emulator.
Try using a different browser like Firefox to download or use another computer to download then copy the file to a flash drive. Then transfer that drive to your computer to install the emulator. (read...)

In replying to Helen who on 09-Sep-2020 wrote: Why I could not download the calculator for my PC with windows 10. Anyone can help?

Helen wrote on 09-Sep-2020, with regard to HP 10bII+ Emulator.
Why I could not download the calculator for my PC with windows 10. Anyone can help? (read...)

Ron Goodman wrote on 29-Aug-2020, with regard to Compare HP 6s - 30s - 20s.
Do you have any info on the 34C ? (read...)

ZCairman wrote on 29-Aug-2020, with regard to HP StreamSmart Temperature Probe (-25C to 110C).
How can I buy HP streamsmart 410 and such temperature probe in China? (read...)

Anonymous wrote on 25-Aug-2020, with regard to Emulator for Windows.
thanks (read...)

Anonymous wrote on 18-Aug-2020, with regard to hp 10bII - Tutorial Switch Periods and Commas ....
Many Thanks for the easy instructions! (read...)

Anonymous wrote on 16-Aug-2020, with regard to HP 10bII+ Emulator.
Hi, you have to install Wineskin Winery first... [URL] www.educalc.net/2338913.page (read...)

In replying to Linda who on 16-Aug-2020 wrote: Hi, can anyone help me create the shortcut for the calculator on desktop on Mac? I can't seem to do it

Linda wrote on 16-Aug-2020, with regard to HP 10bII+ Emulator.
Hi, can anyone help me create the shortcut for the calculator on desktop on Mac? I can't seem to do it (read...)

Gratian wrote on 11-Aug-2020, with regard to Bowmar - First Electronic Calculator Made In USA.
I have a Bowmar model 90506. I lost the charger many years ago. Does anybody know the voltage required? It has three re-chargeable cells in it so maybe it is 4.5V. I'd like to see if it still works after all these years. (read...)

Dean wrote on 07-Aug-2020, with regard to Bowmar - First Electronic Calculator Made In USA.
Yes, do you have one with serial number below 16K....if so, what is your asking price? (read...)

In replying to Dean Winter who on 06-Jun-2017 wrote: Still looking to purchase a Bowmar 901b Calculator with a low serial number, preferred below 16,000.

Dean wrote on 07-Aug-2020, with regard to Bowmar - First Electronic Calculator Made In USA.
I'm interested in your 901C.....what is your asking price? (read...)

In replying to Pierre Montpetit who on 12-May-2018 wrote: I have a 901C which is not listed on this page or anywhere else. Any info about this? I have the case and instruction manual, all in excellent condition. Anyone interested in buying it. Made in Canada, serial # 40686. I do not have the charging wire.

Martin Du Rand wrote on 04-Aug-2020, with regard to HP 35s Emulator.
Land Survey Topic .Back in 1974 I had a HP44 and some steps to do coversion from Polar to Rectangular and backwards (Polars and Joins) working in Degrees min secs I cant find the steps . Does anyone have something similar for HP35S I run Mac but haveWindows Virtual drive. The HP44 was clever and used the Sigma key and two ( I think registry 6 and 7 ) to store the solution in degrees decimal hen you converted from decimal to deg min sec stored the answer then cleared the registry (read...)

Anonymous wrote on 01-Aug-2020, with regard to hp 12c (platinum) - NPV and IRR.
A property sold for $360,000 with a down payment of $40,000. The seller financed a mortgage for the balance, with a 20-year term at 5% interest with monthly payments. The market interest rate is 8%. What is the cash equivalent sale price, including the PV of the loan and the down payment? (read...)

Anonymous wrote on 01-Aug-2020, with regard to hp 12c (platinum) - NPV and IRR.
A mortgage for $4,500,000 originated 5 years ago, at 5.00%, with a 25 year amortization and monthly payments. However, there is a balloon payment at the end of Year 10, at which time the entire balance is due. An investor purchases the mortgage at the end of Year 5 for $3,200,000. What is the purchaser’s yield (annual rate, monthly compounding) on this transaction? (read...)

Anonymous wrote on 01-Aug-2020, with regard to hp 12c (platinum) - NPV and IRR.
If the monthly net rent for a warehouse is $3,000 (paid monthly in advance), and the value of the warehouse is expected to be $400,000 at the end of the new 10-year lease, what will an investor pay for the building to achieve a 15% yield (compounded monthly)? (read...)

Sam wrote on 29-Jul-2020, with regard to Changing the HP10BII Periods per Year Setting.
awesome (read...)

Gene wrote on 26-Jul-2020, with regard to HP 41cx Emulator.
How do you enter the following program lines? SF?C 06 FC?C 22 (read...)

Peter Tong wrote on 07-Jul-2020, with regard to HP Financial Calculators.
Information is found here... [URL] www.educalc.net/141163.page (read...)

In replying to Anonymous who on 06-Jul-2020 wrote: Hi, may i know how i want to change the base year to 1. Currently the base year is 12

Anonymous wrote on 06-Jul-2020, with regard to HP Financial Calculators.
Hi, may i know how i want to change the base year to 1. Currently the base year is 12 (read...)

Haqilah wrote on 06-Jul-2020, with regard to HP Financial Calculators.
May i know how can i set-up the base year to 1. Currently the base year is 12 (read...)

Peter Tong wrote on 28-Jun-2020, with regard to HP49G+ Firmware Version: 1.22 - 3.45.
Hi Jan. Thank you for writing. There was a configuration error on our web server. I have reset it and the download link is working now. Sorry about that. (read...)

In replying to Jan Verkade who on 28-Jun-2020 wrote: An attempt to download HP49+ firmware via the link on subject pages brings me to: [URL] www.educalc.net/images/1062484.imx Noting relevant to download there; please advise

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