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How to change sign on hp35s - HP 35s Scientific Calculator

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Press the +/- key.

Posted on Jun 02, 2014


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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?

Nov 08, 2013 | HP 35s Scientific Calculator

1 Answer

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

1 Answer

Printed manual for Hewlett Packard 35s scientific calculator

CalcPro sells the original HP35S User's manual for about 10 dollars. Here is the link.

Dec 31, 2011 | Office Equipment & Supplies

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My HP35s keeps flashing MEMORY CLEAR. I removed the batteries and reset it with a paper clip. Nothing works.

I'm not sure if it is the only solution, but I had the same problem and I replaced the batteries. My HP35S works fine now.

Previously, however, there was no "battery" annuciator on the screen. This calculator went four years without a bettery change. My HP48GII, on the other hand won't go two months without a change. Go figure.

May 11, 2011 | HP 35s Scientific Calculator

1 Answer

Who can repair HP35S calculator with loose "enter" botton?

I fix all the TI , HP, Casio Calculators
i am in New York


Nov 03, 2010 | HP 35s Scientific Calculator

1 Answer

MY HP 11C Calaculaltor has quit working. I changed the batteries and the screen only blinked a few times. How can I get this fixed? Where can I send this calculator to be repaired?

Try this first. Take out the batteries. Now take a paper clip and bend it into a "U" shape. In the well where the batteries go touch one end of the paper clip to one battery terminal while touching the other end of the paper clip to the other battery terminal. Hold it like this for 30 seconds or so. This effectively dumps any residual charge from the calculator. Now, reinstall the batteries and try turning it on. Assuming this doesn't work I'm afraid you're in the market for a new calculator. HP no longer repairs these so your best bet will be to replace it with the HP35s. The 11c can be found on ebay but they are extremely expensive. Good luck

Aug 02, 2010 | HP 12c Calculator

1 Answer

HP35s extracting P to R anwsers and place in memory

Given a complex number, ARG (yellow-shift i) will give you the angle in the current angular mode, while ABS (blue-shift +/-) will give you the magnitude.

To extract the real and imaginary components, you'll have to use the relationships
x = r cos(a) and y = r sin(a).

Feb 14, 2009 | HP 35s Scientific Calculator

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