Question about HP 12c Calculator

1 Answer

I am trying to use the 11c and do not know how to enter the values to get an answer. For example how do you do 1 2 = ? Is there a site where I can download the instruction manual since I hate to buy a new TI calculator because I just don't know how to enter the numbers into the calculator. Thanks

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    One Above All:

    The expert with highest point at the last day of the past 12 weeks.

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.

  • HP Master
  • 102,366 Answers

That depends on what you want to do with the 1 and the 2. If you want to add them together, for example, you would press
1 ENTER 2 +
If you wanted to multiply them together, you would press
1 ENTER 2 *

It's not free, but you can order the HP-11C manual from

There's also a fairly good tutorial on RPN there at

Posted on Sep 15, 2011


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

How do you find the degree from tan

To calculate the arctangent, use 2ND TAN. For example, to calculate the arctangent of 1, press 2ND TAN 1 ENTER

Nov 20, 2013 | Texas Instruments TI-83 Plus Calculator

1 Answer

How do I take the hyperbolic tangent of a value

You'll find the hyperbolic functions in the MATH/Hyperbolic menu, available by pressing 2ND [MATH]. Alternatively, you can simply type in tanh(, enter the value, ), and ENTER.

For example, to compute tanh(1), press 2ND MATH, down-arrow eleven times, ENTER, 3, ENTER, 1, )(, ENTER.
Or t, ALPHA, a, ALPHA, n, ALPHA, h, (, 1, ), ENTER.

If the calculator gives the answer as "tanh(1)", convert it to a numerical value by pressing diamond, ENTER.

Mar 04, 2011 | Texas Instruments TI-89 Calculator

3 Answers

How to interpolate with 991MS

i am giving the key input with an example..
at 0, value is 300
at 50, value is 270
so how much at 30...

On 991MS,
Go in Reg mode, for doing that : press Menu,Menu, 2

Enter the values as follows,

0,300 and press M+ key on the calci
(Note: there is a "," in between 0 and 300)

then enter the following,
50,270 and press M+ key

now enter the following input exactly as displayed below:

(30) shift 2 > > > 2 =

you will get the answer as 282.

I hope you got it!!!


Feb 22, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

Casio fx-991ES, how to calculate NPV and IRR

At a blank screen, enter your IRR formula in terms of the variables using ALPHA and ')' for variable X. For example: -1000 200/((1 X)^1) 200/((1 X)^2) ... rest of subsequent years. Then, press CALC. It will prompt you to enter values of your variable (X in this example). Don't worry if there's already a value displayed - this is just the most recent value that has been stored as that letter. Simply enter your value (in terms of your IRR guess) and then press [=]. You will have to repeat this for each IRR guess until you reach almost ZERO.

Feb 11, 2011 | Office Equipment & Supplies

1 Answer

When I try to factor a problem it gives me an answer with periods. example: I enter FACTOR(x^3-5xx) and the answer comes up as (2.)^2(3.)

You apparently have a numerical value stored in the variable "x" and the calculator is using that value. To get rid of it, press 2ND [VAR-LINK], scroll down to the line containing the variable x, press F1 1.

Jun 30, 2010 | Texas Instruments TI-89 Calculator

1 Answer



Oct 09, 2009 | The Learning Company Achieve! Math &...

1 Answer

I can't differentiate a function and I'm quite

Clearly the x variable stores value zero. Press [F6] ( 1:clear a-z) [ENTER] and restart your derivative.
Hope it helps.

Sep 29, 2009 | Texas Instruments TI-89 Calculator

1 Answer

Baud rate


Please follow the steps given below to reduce the baud rate on your printer.

1. Turn on the HP all-in-one.
2. From the keypad, press * and # keys simultaneously.
3. Press 1, press 2, and then press 3. Service followed by a number will be displayed on the front panel.
4. Press the right-arrow to select System Configuration.
5. Press Enter on the front panel.
6. Press the right-arrow to select R/W Parameter.
7. Press Enter. Parameter 0 will be displayed on the front panel.
8. Press 1, press 5,press 1 (i.e,151) and then press Enter. The display should read Value followed by a number (example, Value 60).
9. Press 2, press 6, and then press Enter. This will display Parameter 0 on the display.
10. Press 1, press 5,press 3 (i.e,153) and then press Enter. The display should read Value followed by a number (example, Value 60).
11. Press 0, and then press Enter. This will display
Parameter 0 on the display.
12. Press Cancel repeatedly, until the display reads the date and time.

May 21, 2009 | HP Office Equipment & Supplies

3 Answers


a space is given by a value as no value (mass is given by 0) but i will make no sence if i keep this up so here is a really well structured dos page to help you out: good luck.

Sep 25, 2007 | Microsoft Windows XP Professional With...

Not finding what you are looking for?
HP 12c Calculator Logo

Related Topics:

126 people viewed this question

Ask a Question

Usually answered in minutes!

Top HP Office Equipment & Supplies Experts

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers


Level 3 Expert

1089 Answers


Level 3 Expert

102366 Answers

Are you a HP Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides