Question about Canon P23-DHV Calculator

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Will not do simple math

Every time I try to calculate 1000-490= It turns the 1000 into -1000 and will not do the calculation at all unless I punch it in like 1000-490+= but then the answers are all negatives.

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Re: Will not do simple math

Yeah, this calculator is kind of odd in that the keys to the left of the numbers ([÷], [×] and [=]) work more like standard calculators, but the keys to the right ([-] and [+]) work more like they're RPN (more common on HP calculators). To calculate 1000-490, type "[CE/C] 1000 [+] 490 [-]". What happens is this: after clearing then entering 1000, the [+]adds it to the last result (in this case 0), giving us 1000. This number is saved when you enter 490, and pressing [-] subtracts it from the last result (1000), giving you 510.

Posted on Feb 14, 2007

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How to calculate cube root on simple calculator

That depends on how simple a calculator. I'll give some examples below for calculating the cube root of 8.

On a TI-86, press 3 2nd [MATH] F5 MORE F4 8 ENTER

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On a slide rule, place the hairline over the number on the K scale and read the cube root on the D scale.

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My TI-30XIIS calculator displays an arrow,an DEG, and a K always on my screen whenever i try to do simple multiplication. it says Syntax error and will not compute an answer.............

I had this problem also and just fixed it. I hit 2nd key...don't hold it, (it should say 2nd in the lower left corner across from the DEG) then click the K button (also the divide key). The arrow and DEG will remain, but do not affect simple math calculations. Hope this helps!

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Sounds like you could have $100.00 in your memory. The LCD will show your current calculation but the print out might include anything you added to M+/-. Try clearing your M*

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The TI-84 Plus Silver Edition - when dealing with roots and powers - how do you punch in the third root of or the fourth root of... also, how do you punch in ...the 3rd root of 8 cubed? or the 2nd root of...

Press the MATH key to bring up the Math menu. Option 3 gives you cubed, option 4 gives you cube root, option 5 gives you nth root.

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I am trying to get the calculator in "basic math" mode. displaying the answers in "basic form" unless i am selecting otherwise.

The calculator has two Input/Output modes: MthIO and LineIO. Since I do not know exactly what you mean by "basic math" mode or "basic form" I must summarize some properties of each mode so that you can recognize your "basic math" mode.
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The calculator is by default in the MathIO mode. If it not, you can restore it by pressing the key sequence: [SHIFT][MODE] (SETUP) and select [1:MthIO].
To set the LineIO as the default, you press the key sequence: [SHIFT][MODE] (SETUP) and select [2:LineIO].

Hope it helps.
Thank you for rating the solution.

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Unlike other, less sophisticated calculators, the TI83Plus /TI84Plus /TI84Plus Silver Edition do not have a simple key or a command for improper fractions. However there is a command -->Frac accessible through [MATH] key [1:-->Frac] that expresses a result in a proper fraction format.

Here is how you would enter you calculation
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You can also ease a bit on the typing by mentally adding 3 and 4
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Hope it helps

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Hope it solves your problem.

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