Anonymous wrote on 20-Sep-2017, with regard to Charles Babbage .
I hATE YOu Suarez (read...)

Person wrote on 20-Sep-2017, with regard to Charles Babbage .
you are retarted (read...)

In replying to Your Mom who on 06-Feb-2017 wrote: Get spell check Mark!

Anonymous wrote on 17-Sep-2017, with regard to Leonardo da Vinci - first conceived mechanical calculator .
tuch my penez (read...)

JordiP wrote on 17-Sep-2017, with regard to hp 10bII - Resetting.
Hi. After three or four years without batteries, I replaced them. Then, my HP-10B appeared dead. I followed the restoration process: finally the message ALL Clr appeared, but the machine did no operate at all. I performed the selfverification routine without success: at the fourth or fifth button appears the message 10 - Fail 8. Then I need to shortcircuit the batteries contacts to reset. Otherwise, the machine rests as dead. Where can I send the calculator (in Spain) to technical treatment? Thks a lot. (read...)

Shani wrote on 16-Sep-2017, with regard to HP10bii Troubleshooting.
My hphone calculator is calculating the npv and irr wrong what is the problem my battery is also running low pls explain (read...)

Bernard Rousseau wrote on 14-Sep-2017, with regard to HP 42 S RPN Scientific Calculator.
Hold EXT and press + (read...)

Anonymous wrote on 14-Sep-2017, with regard to Blaise Pascal - first digital calculating machine.
Pascal did not invent the calculator when he was 18. (read...)

Anonymous wrote on 14-Sep-2017, with regard to Charles Babbage .
word (read...)

In replying to Anonymous who on 09-Aug-2016 wrote: this not helpful at all

Ammar wrote on 14-Sep-2017, with regard to Evergreen Stationary.
i need hp calc 200 + numeric pad (read...)

Anonymous wrote on 11-Sep-2017, with regard to Blaise Pascal - first digital calculating machine.
because the thing s he did (read...)

In replying to BOBS YOUR DAD who on 11-Sep-2017 wrote: why was hitler a bad person

BOBS YOUR DAD wrote on 11-Sep-2017, with regard to Blaise Pascal - first digital calculating machine.
why was hitler a bad person (read...)

Bob Reeves wrote on 09-Sep-2017, with regard to Emulator for Windows.
have micro soft 10 can't get HP 41C on my desktop, had it on XP7 was great. (read...)

Anonymous wrote on 07-Sep-2017, with regard to HP 39gs the best graphing calculator for students.
I'm interested in how to program something: (2A + B) * 5 = then I enter values ​​A, B and I have the solution of the equation (read...)

Anonymous wrote on 07-Sep-2017, with regard to HP 39gs the best graphing calculator for students.
I'm interested in how to program something: (2A + B) * 5 = then I enter values ​​A, B and I have the solution of the equation (read...)

Anonymous wrote on 04-Sep-2017, with regard to Blaise Pascal - first digital calculating machine.
is a pascaline calculator a computer according to the Turing model (read...)

John Ferman wrote on 02-Sep-2017, with regard to HP 50g.
Does the 50 come with printed manuals, what kind of batteries are used, I have a 128 Kb card in my 48GX - is that passé. What are the prices, EduCalc sell. (read...)

Tiffany B wrote on 02-Sep-2017, with regard to HP 10bII+.
Where is the CPT button or how to get CPT? - I am dealing with simple discount rate, number of periods problems and need this button for calculations. (read...)

Anonymous wrote on 01-Sep-2017, with regard to hp 12c (platinum) - Changing the Display from a Comma to a Decimal Point.
The instructions did not work for mine also! (read...)

Celine Chew wrote on 30-Aug-2017, with regard to MATH MAGIC, The Ultimate Math Challenge.
can i know how to buy this game? i live in malaysia (read...)

Anonymous wrote on 23-Aug-2017, with regard to hp 20b - Performing Complete Self Test.
just buy a new one. (read...)

In replying to Lealyn D. Louis who on 13-Sep-2013 wrote: Good evening! I just bought my hp 20b last wednesday september 10, 2013 but i only opened it tonight. I pressed the On button like what the Quickguide said but it won’t turn on! is it really like that?or something to do with the battery? I really need to use it for my Finance subject. Please help.Thanks

LWS wrote on 20-Aug-2017, with regard to Kent Ridge - NUS Co-op Store.
Looking to buy a HP 12C Platinum financial calculator. Is it available at the store in the store at Bugis Jcn or Westgate? (read...)

Darwin17 wrote on 18-Aug-2017, with regard to HP Calculator Connectivity Kit for HP Prime.
HP Prime Connectivity Kit for 2017 7 10 (12066) (read...)

Anonymous wrote on 17-Aug-2017, with regard to HP 18c Business Consultant..
i understand i need 3 times 1.5v batteries , is it enough or do you have name four that : example Duracell and so on (read...)

In replying to Ron Ross who on 09-Apr-2013 wrote: The Hp 18C (and 19B, Bii, 28c and 28s) all use N cell batteries. These are 1.5 Volt and NOT 12V like some garage door controllers use that are very nearly the same size and dimensions. Of course if you use the 12 Volt batteries (and more people have done so than I care to count), you put 36 Volts where only 4.5 volts is designed and you (not you, but others) ruin the fine vintage calculator. Remember N cell, often called instrument batteries. Usually these batteries are on the costly side of $5 per pair ...

Anonymous wrote on 17-Aug-2017, with regard to HP 18c Business Consultant..
i understand i need 3 times 1.5v batteries , is it enough or do you have name far that example Duracell and so on (read...)

In replying to Ron Ross who on 09-Apr-2013 wrote: The Hp 18C (and 19B, Bii, 28c and 28s) all use N cell batteries. These are 1.5 Volt and NOT 12V like some garage door controllers use that are very nearly the same size and dimensions. Of course if you use the 12 Volt batteries (and more people have done so than I care to count), you put 36 Volts where only 4.5 volts is designed and you (not you, but others) ruin the fine vintage calculator. Remember N cell, often called instrument batteries. Usually these batteries are on the costly side of $5 per pair ...

Anthony Martin Chhu #1717 Member wrote on 13-Aug-2017, with regard to HP 50g 3rd Party Software.
Am looking for a old star trek game for my hp50g (read...)

Neetu wrote on 11-Aug-2017, with regard to Kent Ridge - NUS Co-op Store.
Hi, I am looking for HP10BII Financial calculator. is it available with you? (read...)

Neetu wrote on 11-Aug-2017, with regard to Kent Ridge - NUS Co-op Store.
Hi, I am looking for HP10BII Financial calculator. is it available with you? (read...)

Zin Mar wrote on 10-Aug-2017, with regard to Buy HP Calc In Thailand.
Dose Bangkok branck has HP 15C / 35S Calculator in stock? (read...)

Anonymous wrote on 08-Aug-2017, with regard to Calculator is ok till I changed its batteries.
My hpbii+ calculator keeps switching off when I use it. I know it's not the battery as the symbol doesn't show. What could be the problem? (read...)

Innocentia wrote on 06-Aug-2017, with regard to hp 10bII - Resetting.
My Hp10bll+calculator first showed a battery sign with a small mark inside I assumed it meant low but I haven't bought new ones, few days down the battery sign disappeared Now if I press a zero it shuts down what am I supposed to do? (read...)

Alex wrote on 06-Aug-2017, with regard to hp 12c (platinum) - Changing the Display from a Comma to a Decimal Point.
There is other way? my HP12C Don`t change with this procedure (read...)

Luiz wrote on 20-Jul-2017, with regard to HP 39gII Manual.
boa calculadora (read...)

John wrote on 19-Jul-2017, with regard to Sim Lim Square - Perfect Watch.
I am thinking of visiting your shop in Sim Lim this coming Saturday July 22nd, to buy a financial calculator. Could you tell me which HP ones you have in stock and whether you also have Texas Instruments calculators in stock ? Thanks and regards. John (read...)

BartDB wrote on 18-Jul-2017, with regard to HP 50g Equation Library Update for ROM 2.09 (92).
Hi all who visit here: Please download the files from HPCalc.org: www.hpcalc.org/details/6515 Note that the hpcalc.org file contains a newer version of the EqLib file and also includes the periodic table (not included in the download on this page). Best regards, Bart (read...)

Musa Xulu wrote on 18-Jul-2017, with regard to HP 50g Equation Library Update for ROM 2.09 (92).
I would like to know where i can download equations library(226-227-229) for my HP 50g because as i deleted mine one bcos i needed some space and i kept it in the memory stick for future use but now the memory stick is corrupt and i cannot access my library. Could u pls help. (read...)

Shini wrote on 18-Jul-2017, with regard to hp 10bII - Resetting.
why i didint get correct answer whenever do IRR and NPV question?? (read...)

Anonymous wrote on 17-Jul-2017, with regard to HP 10bII+.
Why are my answers for future value, present value or cash flow questions on the hp-10bII always different from the answers from the hp-12C (which are the correct answers)? Please tell me how to line it up so that I can have the correct answers. (read...)

JAY wrote on 13-Jul-2017, with regard to HP 12c Platinum 25th Anniversary Edition.
I have one. If still searching let me know (read...)

In replying to Rafael who on 28-Apr-2017 wrote: How can I order the Exclusive 25th Anniversary embossed leather pouch. How much it cost

Ron wrote on 10-Jul-2017, with regard to Sea Sound - Raffles Place.
I don't think this site sells used calculators or anything that old. However, you should be able to find on ebay or some other site that deals with used calculators, such as Samson's Cables. Samson Cables sells used Hp 48G+ and GX calculators. You should be able to find better deals, but Samson cables does provide some warranty for their products. (read...)

In replying to Naim who on 09-Jul-2017 wrote: Do you have any HP48G+ or HP48GX series calculators?

Naim wrote on 09-Jul-2017, with regard to Sea Sound - Raffles Place.
Do you have any HP48G+ or HP48GX series calculators? (read...)

Jim wrote on 03-Jul-2017, with regard to HP 11C.
LR44 button cells (read...)

In replying to Anonymous who on 22-Oct-2016 wrote: What are the batteries for this HP 11C ?

Adele wrote on 03-Jul-2017, with regard to Abacus.
good information but you could maybe have something about who invented the abacus and how. I found it very helpful though! (read...)

Anonymous wrote on 02-Jul-2017, with regard to Bras Basah Complex - Prestige Time.
Hi I'm looking for an HP calculator ( type 10bll+ ) is the stock available? Is it possible to be delivered? Thank you (read...)

Anonymous wrote on 02-Jul-2017, with regard to Funan IT Mall - Inforcom.
Hi I'm looking for an HP calculator ( type 10bll+ ) is the stock available? Is it possible to be delivered? Thank you (read...)

Anonymous wrote on 02-Jul-2017, with regard to Mustafa - Little India, Serangoon Road.
Hi I'm looking for an HP calculator ( type 10bll+ ) is the stock available? Is it possible to be delivered? Thank you (read...)

Stacy Shields wrote on 01-Jul-2017, with regard to Clearing the HP10BII Calculator.
I want to be absolutely clear regarding the proper key strokes to clear my 17Bii+ because the Certified Financial Planner national examine requires it. I am not positive "shift" key and "clear all" key clears more than just data. I need to be able to clear any formulas stored as well. Can someone tell me the proper key strokes? seshields@trueblue.com (read...)

Robert wrote on 30-Jun-2017, with regard to HP Calculator Serial Number.
How old is my HP calculator (read...)

Ang wrote on 30-Jun-2017, with regard to Plaza Sinar - Echoplex Marketing Services.
Hi can I know how much is the price for financial calculator HP BII+? (read...)

Ron wrote on 27-Jun-2017, with regard to HP 12c Simple Programming.
You can't. You can type over, but you can't really edit. The Hp 12c (and Hp 10c) had limited editing and programming abilities compared to the other three 10c series calculators that were released. (read...)

In replying to Richard G Allen who on 24-Jun-2017 wrote: how do you delete steps in a program that has been created

Ron wrote on 27-Jun-2017, with regard to HP 12c Simple Programming.
You can't. You can type over, but you can't really edit. The Hp 12c (and Hp 10c) had limited editing and programming abilities compared to the other three 10c series calculators that were released. (read...)

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