Question about HP 12c Calculator

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My equal sign does not function.

My equal sign does not function.

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  • azlinza Feb 08, 2010

    i mean my equal sign is the 'enter' button. if i make a simple cal culation let say 2*2 = 4, but the enter button doesn't function.

  • azlinza Feb 11, 2010

    it does not reponse. i manage to get 3 and tje calculator in ALG mode

  • kakima May 11, 2010

    Wait a sec! ALG mode? Are we discussing an HP 12C, or something else entirely?

  • kakima May 11, 2010

    So, what does the ENTER key do when you press it?

  • kakima May 11, 2010

    What happens when you put in 2 ENTER 3 +?

    If you get 5, then the ENTER works. If the ENTER isn't working, you should get 3.

    You are aware that the 12c is an RPN calculator? It uses ENTER to separate arguments, and the operation is put in after the arguments.

  • kakima May 11, 2010

    What equal sign? The only equal sign on an HP 12c is the x=0 (g CLx) which is a conditional, and of no signifcant use outside of a program.

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Are we dealing with a 12C Platinum instead of a 12C?

On a 12C Platinum in ALG mode, you don't use the ENTER key at all, but the = key.

Posted on Feb 24, 2010

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The calculator only allows one line equation to show up at a time. There are also arrows where a division mark should be by the Y1, Y2, etc.


Hello,
Clear the you the RAM to revert to default settings and restart. I am including screen capture fro a TI to show you how to set up the calculator.

d4c969a.jpg

Notice the white-on-black equal signs. For a function to be drawn, the equal sign in its definition must be highlighted. To effect that you scroll left to the = and press ENTER. You will know the function has been selected for graphing if its equal sign remains white-on-black after cursor has moved to another location.

cb0d5d6.jpg
Here is what the 4 functions look like. They all are on same graph.
Now we will change the graph style of the cosine function.

fce7a77.jpg
The only difference between the first screen and this one is the style of the line at the left of the Y4. To change the style, you move to the cursor to the left of the Y and press ENTER. Each time you press êNTER, the style for the function in question changes. Here is the product.
00e0856.jpg
The wavy curve (cosine) is now dotted.

Hope it helps.

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