How do you clear out information that you previously entered?
I have the TI-86 Plus & I was just wondering how you delete information that you previously entered, such as in a table?
I can't find a way to delete it or clear it out, so that I can start over on the problem.
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The TI 86 calculator does not manipulate algebraic expressions. If does not have a Computer Algebra System or CAS. Try the TI 89 Titanium, TI92/92PLUS, Voyage 200 PLT, TI Nspire CAS, TI Nspire CX CAS. In Casios you have the ClassPad series (300, 300Plus, 330 Plus and the latest 400. The ClassPad 400 has a color screen. It is also orientable portrait or landscape. Other Casios are the Algebra FX 2 and 2, and the FX 9860 G Plus/ SD. In HP you have HP 50G, HP49C, HP49G+.
First exit out of any applications and make sure you are at the home screen. You can do this often by pressing "2nd" then "Mode" to quit or by pressing "Clear." Then, press the blue button titled "2nd" and then hit enter. The most recent thing you have entered in the calculator will appear on the screen. Doing this again will give you the second most recent, then the third and etc.
Yes, your Ti 86 should solve square root problems. At the HOME screen press [CLEAR] [2nd] [x^2] which gives the (Square Root Symbol) to display at the Home screen. Then enter the number you want the square root of and close the bracket [ ) ] and, press the [ENTER] key.
You can even get the square root of complex numbers too. Select the correct complex format in the mode settings. For example: I'll do one in the rectangular form by enter a number as (a, b). I then will go to [2nd] [MODE] then [Arrow down] 3 times and make sure the RectC is highlighted and selected. Then quit out of the mode settings screen and enter [CLEAR] [2nd] [x^2] [ ( ]  [ , ] [ - ]  [ ) ] [ ) ] [ENTER], this displays the SQRT((9,-4)) equals (3, 2); The real part is 3 and the imaginary part 2.
To restore memory on a TI 84 to factory settings follow the directions on pages 108 and 109 of the instructions manual (TI 84 Plus Silver). Otherwise look in the index for RESET MEMORY to get the right page. Be sure you read the precaustions!!!!!!