20 Most Recent Texas Instruments TI-15 Explorer Calculator - Page 9 Questions & Answers

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!

For the "-" did you use the subtract key "-" or the negative key "(-)" to the right of the decimal point?If you used the subtract key then you need something between it and the "=" since the "0.5x" has to be subtracted from something.

Is there a small button on th eback that you press with a ballpoint pen or similar? Otherwise remove battery.

It depends on the calculator. The Casios have two = signs. The main one tells the calculator to evaluate the expression entered. It is at the bottom of the face of the calculator.There is a second key that helps you enter the = sign without executing the command. To type in that = sign, you press the ALPHA key followed by the CALC key. The = sign is entred. Usually that sign is used when you want to enter an equation to be solved.What I said above to some Casio calculators. However your question is under the Texas Instruments Calculators heading, and I have no idea which TI calculator you have in mind,

For the TI-89 Family, TI-92 Family, and Voyage 200:

1. Try a new set of batteries (including the backup battery).
2. Adjust the contrast by pressing and releasing the Diamond Key key followed by pressing and releasing the [+] key; repeat as necessary. To adjust or lighten the display, use the [-] key.
3. Users of the TI-89 Titanium or Voyage 200 should see the following case before performing the following reset procedure to prevent the loss of valuable Apps.On the TI-92 family or Voyage 200, hold the [2nd] key and the [hand] key, then press and release the [on] key. On the TI-89 family, press and hold the [2nd] key, left arrow, and right arrow; then press and release the [on] key. This should reinitialize the operating system, in which you should see a progress bar filling on the screen.
4. Remove one of the AAA or AA batteries. Press and hold the [APPS] key, and while holding the [APPS] key, replace the battery and turn the unit on. TI-89, 92 Plus, or Voyage 200 users should see "Press I to install code...", and should press the [9] key. The calculator should then say, "Waiting to receive...". TI-89 Titanium users should see "Waiting to receive..." or "Waiting to received OS...".

I have the same prblem bro, exept that it prints out 7 extra dots in the midle of the tape.