Question about Texas Instruments TI-86 Calculator

# What is the cube root function on the ti-86

What/how do you activate the cube root function on the ti-86

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• Richard Klein May 11, 2010

couldn't you just (64)^(1/3)=4 or (anything )^(1/3) is the cube root. As far as activating I've never heard of it. Yes, something is wrong but, it is a conflict with memory, variable, or even mode settings. I would have to know more about how you use your memory to even if your setting it up right.

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Look under math calc and there should be an x^3 key

Posted on Sep 29, 2009

### Anonymous

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## Related Questions:

### 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

If the calculator has a "^" or "y^x" key, raise 8 to the 1/3 power. Again, on the TI-86, press 8 ^ ( 1 / 3 ) ENTER

If the calculator has a logarithm key, take the logarithm, divide it by three, then take the antilogarithm. Again, on the TI-86, press 2nd [e^x] ( ln 8 / 3 ) ENTER

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

Jan 10, 2013 | Texas Instruments TI-86 Calculator

### How can I find the square root of 39 on my ti-30xa? Also I would like to know how to find the cube of 9482... Help

Square root of 39: Press 3 9 [square-root] =
[square-root] is the key just to the left of the divide key.

Cube root of 9482: Press 9 4 8 2 2nd [cube-root] =
[cube-root] is the shifted function of the 0 key.

For other roots, you can use the [nth-root] function, the shifted function of the key above the divide key. For example, to calculate the fourth root of 16, press 1 6 2nd [nth-root] 4 =

Aug 11, 2011 | Texas Instruments TI-30XA Calculator

### Cube root(1.91 dividided by (4.2- 3.766))

Use the xth-root function in the MATH MISC menu.

3 2ND [MATH] F5 MORE F4 ( 1 . 9 1 / ( 4 . 2 - 3 . 7 6 6 ) ) ENTER

Nov 23, 2010 | Texas Instruments TI-86 Calculator

### How do i enter cube root on the ti86

In the MATH MISC menu you'll find the xth-root function. Use this to find the 3rd root.

3 xth-root 8 ENTER will give 2.

Sep 13, 2010 | Texas Instruments TI-86 Calculator

### Finding a cube root on calculator

You can calculate cube roots by using the cube root function (the 2nd-shift of the 0 key). You can calculate arbitrary roots by using the x-root function (the 2nd-shift of the y^x key, just above the divide key).

May 27, 2010 | Texas Instruments TI-30XA Calculator

### What are the steps to find the cube root of a number using the TI-86 calculator?

Use the root function in the MATH MISC menu.

To find the 5th root of 32: enter 5 then the root function and then 32 and then ENTER to get 2.

Apr 06, 2010 | Texas Instruments TI-86 Calculator

### How do I find the cube root button on my TI- 86

Hello,
There is a relation between roots and fractionary powers.

2nd root (square root) of X = X^(1/2) power 1/2
3rd root (cubic root) of X = X^(1/3) power 1/3
4th root of X = X^(1/4)
...
n-th root of X = X^(1/n)

Use the raise to arbitrary power key labeled as a caret [^] or [X to the y] or [Y to the x]
Hope it helps.

Oct 12, 2009 | Texas Instruments TI-86 Calculator

### How to find cubed root on a TI-89 calculator

To find the cubed root (or any root) of a number, use the root() function.

If you want the cubed root of 125, you would type:

root(125,3)

Mar 06, 2009 | Texas Instruments TI-86 Calculator

### I need help with square root functions

Hello,
The square root has a dedicated key sequence [2nd][V square root symbol]
Square root of 21.2846 is entered [2nd][V square root] 21.2846 [ENTER] .
The result is`4.614.
I suspect you want to calculate the 4th root of 21.2846. If it is the case you enter that as
21.2846 [^](1/4) =2.148
Square root can be also entered as [^](1/2)
Cube root is entered as [^] (1/3)

..
nth root is entered as [^](1/n)
Hope it helps.

Nov 19, 2008 | Texas Instruments TI-86 Calculator

### Cube roots on ti89

The TI-89 has one function to find whatever root you want of a number.

To find the cubed root of say...64, you would type:

root(64,3)

Sep 15, 2008 | Texas Instruments TI-89 Calculator

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