Question about HP 35s Scientific Calculator

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HP 35s in OCT mode, calculations don't work

Display shows ALG and OCT on top, when I type in a number and hit enter calculator displays different numbers and a letter.

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  • HP Master
  • 102,366 Answers

There are two separate issues here.

Your calculator is in Algebraic mode. To switch to RPN, press MODE 5 .

Your calculator is also in Octal mode. To switch to Decimal, press right-shift 1 1 .

Posted on Mar 24, 2014

Testimonial: "That fixed the problem, thanks."

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 6 Answers

SOURCE: my calculator has a funny format

Try pushing and releasing [f], then [4]. This will give you 4 decimal places. (It follows that if you want 5 decimal places, push 5 instead of 4, etc). If that doesn't work, you can try taking the batteries out and putting them back in which should reset it to 2 decimal places, then set it where you want it following the above.

If it continues to malfunction I suggest taking the batteries out for 24 hours to allow a static discharge. This will lose anything you stored in the calculator, setting it back to how it came from the factory.

Posted on Jan 30, 2008

Dipu007
  • 2110 Answers

SOURCE: Addition Problem with HP 17BII

do a self test

1. Turn the calculator on.
2. If you have the optional infrared printer, turn it on. Certain diagnostic
information is printed during the test.
3. If possible, return to the MAIN menu (press @A).
4. To start the self-test, hold down C while you press the fifth menu
key from the left. Once the self-test has begun, do not press any keys
until you are ready to halt the test.
5. During the test, the calculator beeps periodically and displays various
patterns and characters. Watch for one of two messages that are
displayed before the test automatically repeats:
􀂄 If the calculator passes the self-test, the calculator displays
        
􀂄 If the calculator displays     followed by a five-digit number,
the calculator requires service.
6. To halt the self-test, hold down C while you press the third menu
key from the left. The calculator displays             . If you
press any other key instead, the test halts and the calculator displays
a     message. This results from an incorrect key being pressed,
and does not mean that the calculator requires service.
7. If the calculator failed the self-test, repeat steps 4 through 6 to verify
the results. If you do not have a printer, write down the messages that
are displayed in step 5.

Posted on Jan 01, 2009

  • 66 Answers

SOURCE: The numbers in the display are half there, not complete

Faulty LCD product replacement needed.

Posted on Jan 18, 2009

  • 1 Answer

SOURCE: Number 6 on Key Pad, not working

I had the identical problem. One of the fixya folks helped me disassemble the calculator, which I did (there are about 6 plastic rivets which must be reamed away before the circuit board can be lifted out). Be careful not to lose the grounding springs which go back through the two hollow plastic posts. Pull the white sticky covering back carefully, noting which contact represents the "6". Clean the contact area as described but also make sure the contact is in the dead center of the "cut outs" in the sticky film area. When reassembling, I put a small piece of ace bandage between the board and the back of the calculator (towards the bottom, do not block the metal plate where it contacts the "spongy metal" grounding box). This is needed for support since the rivets have been removed.Carefully reassemble everything including the springs. Mine worked perfectly afterward!
I do have a theory that the magnets used in the "anniversary" case have an adverse effect on the calculator. Just a hunch, since one sits over the "6" key. I don't use that case anymore. Sorry they don't make 'em like they used to!

Posted on Sep 18, 2009

  • 7993 Answers

SOURCE: where can I get calculator repaired?

Contact this repair shop in Pennsylvania. On the list you will find indication about the cost.

Posted on Jan 01, 2010

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1 Answer

How do i get the ALG below the numbers to go away?


Your HP 12c Platinum is in Algebraic mode. To switch back to RPN mode, press f then CHS.

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Press left-shift DISPLAY 3 then a digit for the number of desired digits.

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HP35s minus sign display is incorrect


The minus is always centered while the negative is always at the top.

If you're in algebraic mode, press 1 - 2
You should see the centered minus sign between the one and the two. Now press ENTER, and you should see the top negative preceding a one.

The two are two different things. The first indicates subtracting one number from another. The second indicates a negative quantity.

Are you sure the minus is at the top? Or was the negative centered?

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How to remove RAD from HP35s


Press MODE then 1, 2, or 3 to select the desired angular mode. In any mode other than degrees the display will indicate the mode.

Mar 13, 2013 | HP 35s Scientific Calculator

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There's a small little o next to the number that I enter(10o)If I multiply by 2 it shows 12 ?


You configured the calculator to do calculation in base 8 (octal). Reset calculator or change numeration to base-10 (decimal).

May 07, 2012 | HP 35s Scientific Calculator

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AIG function is on and I can't get it off


If you mean "ALG" then your calculator is set to algebraic notation. To switch to RPN, press MODE then 5.

Feb 17, 2011 | HP 35s Scientific Calculator

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Hp 35s...hex display showes 0h 0h cant change out of this mode


Press right-shift [BASE] 1 to select decimal. [BASE] is the blue-shifted function of the 1 key.

Sep 13, 2010 | HP 35s Scientific Calculator

1 Answer

How to fix a none responsive button in hp 35s calculator


Resetting the Calculator
If the calculator doesn't respond to keystrokes or if it is otherwise behaving unusually, attempt to reset it. Resetting the calculator halts the current calculation and cancels program entry, digit entry, a running program, a SOLVE calculation, an ∫ FN calculation, a VIEW display, or an INPUT display. Stored data usually remain intact.

To reset the calculator, hold down the C key and press GTO . If you are unable to reset the calculator, try installing fresh batteries. If the calculator cannot be reset, or if it still fails to operate properly, you should attempt to clear memory using the special procedure described in the next section. If the calculator still does not respond to keystrokes, use a thin, pointed object to press the RESET hole.
The calculator can reset itself if it is dropped or if power is interrupted.

CLEARING the MEMORY

If the calculator fails to respond to keystrokes, and you are unable to restore operation by resetting it or changing the batteries, try the following MEMORY CLEAR procedure. These keystrokes clear all of memory, reset the calculator, and restore all format and modes to their original, default settings (shown below):
  1. Press and hold down the C key.
  2. Press and hold down the R/S key
  3. Press i (You will be holding three keys simultaneously)
  4. When you release all three keys, the display shows MEMORY CLEAR if the operation is successful.

Mar 02, 2010 | HP 35s Scientific Calculator

1 Answer

I have an HP 12C calculator and I cannot find the user manual and I cannot remember how to change the no. of decimal places?


Check this HP FAQ:
Setting a Fixed Decimal Place You can download the manual and user guides for your calculator from here:
http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&product=81575&lang=en&

For more information, Faqs & how-Tosgo the HP support homepage for your calculator:
http://h10025.www1.hp.com/ewfrf/wc/product?lc=en&dlc=en&cc=us&lang=en&product=81575&
s.gif
Introduction This document describes how to set the desired number of decimal places on the HP 12c calculator in standard format. It also covers how to enter a number in scientific notation. Instructions for standard format
  1. Press and release c01774993.jpg .
  2. Press the number key for the desired number of decimal places to be displayed to the right of the decimal point (0 through 9). The calculator displays a maximum of 10 digits.
The display will show the specified number of decimal places. The answer will be rounded to the number of digits selected. Example (standard format) If the number in the display is 14.87456320, the display will be changed as follows: Keystroke Display c01774994.jpg 14.8746 c01774995.jpg 14.9 c01774996.jpg 15 c01774997.jpg 14.87456320 Instructions for scientific notation Use scientific notation for very large or very small numbers. Type in the mantissa. After pressing, c01774998.jpg the next numbers keyed in are exponents of 10. Press c01774569.jpg . If during an operation a result has more than 10 digits, the calculator automatically displays the number in scientific notation
s.gif
Introduction This document describes how to set the desired number of decimal places on the HP 12c calculator in standard format. It also covers how to enter a number in scientific notation. Instructions for standard format
  1. Press and release c01774993.jpg .
  2. Press the number key for the desired number of decimal places to be displayed to the right of the decimal point (0 through 9). The calculator displays a maximum of 10 digits.
The display will show the specified number of decimal places. The answer will be rounded to the number of digits selected. Example (standard format) If the number in the display is 14.87456320, the display will be changed as follows: Keystroke Display c01774994.jpg 14.8746 c01774995.jpg 14.9 c01774996.jpg 15 c01774997.jpg 14.87456320 Instructions for scientific notation Use scientific notation for very large or very small numbers. Type in the mantissa. After pressing, c01774998.jpg the next numbers keyed in are exponents of 10. Press c01774569.jpg . If during an operation a result has more than 10 digits, the calculator automatically displays the number in scientific notation

Aug 24, 2009 | HP 12c Calculator

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