Question about Texas Instruments TI-85 Calculator

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Trig Problem I need to find the square root of a number for (eg) 2156. Instead of gettin the answer in the form 46.43 I need it in the form 14 square root 11. How do I do that on the TI-85

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A TI-89 and a TI-30XS Miltiview can.

Posted on Apr 19, 2008

  • Brandon Longo
    Brandon Longo Apr 30, 2008

    The 89 can and the casio fx115es can
    I just got the 30xs multiview
    MY BAD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  • Brandon Longo
    Brandon Longo Apr 30, 2008

    The 30xs mv cant but the casio 115es can
    MY BAD!!!!!!!!!!!!!!!!!!!

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U cant.
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Posted on Feb 27, 2008

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1 Answer

Square Root Again


On a TI 36X Solar, you enter the number and press the square-root key.

If you're asking about some other calculator, please reply to this post and specify the make and model of the calculator.

Apr 16, 2014 | Texas Instruments TI-36 X Solar Calculator

2 Answers

What are the keys to enter to calculate square root


The square root is the second function of the "3" key. To calculate the square root of 2, press 2 2ndF =

May 25, 2013 | Sharp EL-738 Scientific Calculator

1 Answer

I have a casio fx-115ES and I want to do a cube root without answering in decimal forms


Sorry, but the fx-115ES can only display square roots in radical form. Cube roots are beyond its symbolic capabilities and will always be in decimal form.

Mar 08, 2013 | Texas Instruments TI-86 Calculator

1 Answer

Fx-115es radical notation


This calculator can show the results in radical form if it involves square roots. The 4th root of 243 is 3 times the fourth root of 3, which unfortunately is beyond the calculator's capabilities to display in radical form. Try taking the fourth root of 3 (or equivalently, the square root of the square root of 3) and you'll see the calculator display the result in decimal.

Feb 06, 2013 | Casio Office Equipment & Supplies

1 Answer

Fx-115es radical notation


The calculator can show the results in radical form if it involves square roots. The 4th root of 243 is 3 times the fourth root of 3, which unfortunately is beyond the calculator's capabilities to display in radical form. Try taking the fourth root of 3 (or equivalently, the square root of the square root of 3) and you'll see the calculator display the result in decimal.

Feb 06, 2013 | Office Equipment & Supplies

4 Answers

On my casio fx-82au plus calculator it won't


The capability of these calculators to handle irrational numbers in radical form is limited to square roots. Roots of index other than 2 are always displayed in their decimal representation.
If the calculator IO mode is set to MathIO, square roots will be displayed with the radical symbol. More complicated expressions with square roots might not be preserved and will be given as decimal numbers.

Oct 31, 2012 | Office Equipment & Supplies

1 Answer

When I square a negative number (eg -2^2) it gives me a negative answer (-4) why isn't it giving me a positive answer?


You're not squaring a negative number, you're negating a square. What you need to do is calculate (-2)^2 instead of the -(2^2) you're now calculating.

Feb 04, 2010 | Texas Instruments TI-83 Plus Calculator

2 Answers

How do you use the imaginary number with the TI-84 calculator?


If you want the answer in rectangular form, set MODE a+bi and tap ENTER and QUIT. Tap square root sign, tap (-)4 and close the parenthesis and tap ENTER. The answer is shown as 2i.
If you want the answer in polar form, set MODE to re^xi and and DEGREE. Tap ENTER and QUIT. Tap the square root sign, tap (-)4, close the parenthesis, and tap ENTER. The answer shown is 2e^90i. (2 at ninety degrees). If you selected RADIAN mode, the answer would be 2e^1.57i (2 at 1.57 radians; or 2 at pi/2 radians)

Mar 09, 2009 | Texas Instruments TI-86 Calculator

1 Answer

Tig prob


The calculator cannot do that natively. There may be a program that you can drop onto your calculator to do it though.

http://www.ticalc.org/pub/85/basic/math/
has a ton of stuff... I saw two programs that sounded like it would do what you wanted... but I don't have an 85 to test it on so sorry if they don't...

Ones I saw are "alghelp.zip" and "algef85.zip"

-Saik0Shinigami

Dec 08, 2007 | Texas Instruments TI-85 Calculator

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