20 Most Recent Texas Instruments TI84Plus Graphic Calculator - Page 7 Questions & Answers

If it has a hardware reset button you should see it on the back of the calculator. First thing to do is replace batteries with fresh ones after cleaning the metallic contacts. Second thing is to increase contrast.

I am not sure what model you are referring to. In general, to calculate natural logarithms you use the ln key. To calculate the exponential (e^x) you use [2nd] [LN] (e^x) For decimal logarithms (logarithms in base 10) Use the [log] key. The inverse of the log(x) function is the power function 10^x. To access this function , use [2nd][log] (10^x).

Show us a picture of this bizarre behavior.

Who? You or the calculator? For help on how to do fractions with the help of the calculator you must specify the model.

Replacing the Ink Roller

1. Press the OFF button.
2. Remove the printer compartment cover.
3. Remove the ink roller from the right side of the compartment. Insert your index finger, nail down, under the tab on top of the ink roller. Gently lift the ink roller out of the compartment.
4. Lower the new ink roller (IR-21) into the compartment and align the hole in the ink roller with the pin in the compartment. Press down until it snaps into place.
5. Replace the compartment cover.

Warning Never refill or moisten the old ink roller. This can damage the printing mechanism and void the warranty. The full manual can be found here: http://www.retrevo.com/support/TI-TI-5006-II-Calculators-manual/id/426ci758/t/2/

Asking the question twice is not going to help have a solution. What helps is clear information about what you were or are trying to do. As in the computer, certain menus are contextual: they are only available if the context (the action) is appropriate.

What model TI calculator?

I am sorry I have no idea what you mean. I checked the whole catalog and did not find anything that can remotely pass as an overline (over line) nor as an underline. Could you please tell us what you are trying to do?

It is a business analyst. I has several keys for financial calculations but none for fractions.

Sorry, you can't. The TI-84 has a limited ability to work with fractions but it won't work with irrational numbers.

For any polynomial A(x) there is P(x)=A(x)(x-1)(x-2)+2 and this polynomial fulfills above requirements.Then, remainder of P(x) divide by (x-1)(x-2) is also 2!