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How do you insert a binomial coefficient into my TI-36x

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Posted on Jan 02, 2017

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Posted on Oct 16, 2008

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SOURCE: Correlation coefficient of sine regression?

The correlation coefficient does not have meaning (is not defined) for most regression models. Check you theory to make sure it exits for the sine regression.
An easy way to verify that, is to use the Command DiagnosticOn, accessible through the catalog [2nd][0] (CATALOG) . Press [X^-1] (D) to jump to first command that starts with D. Scroll down to DiagnosticOn, select it and press [ENTER]. Calculator replies Done.

Do your sine regression again. If the correlation coefficient has meaning for this type of regression, you will find it with the other statistical variables. You may have to scroll down the statistical variable list to verify the whole contents of the list.

Hope it helps.
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Posted on Dec 15, 2009

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SOURCE: Texas instruments - Orion ti-36x manual


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I lost my user manual

Texas Instruments has the guidebooks for many of their calculators on their support page. is the best starting point.

The direct link to the TI-36x Solar Guidebook is . If you click Continue as Guest, you should be able to download the PDF.

I hope this helps.

Cindy Wells

May 25, 2015 | Texas Instruments - Ti-36x Solar...

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How do i find the inverse key on a ti-36x pro calculator

Its been a while since I used it but I normally enclosed the number in braces and then raised it to the power of (-1)...Make sure you use the braces

May 31, 2014 | Texas Instruments TI-36X Pro Scientific...

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Ti-36x pro

In the top right corner of the screen. There is a button that says 2nd.

Press 2nd then press the button that is four buttons further down on the same row of buttons.

Nov 24, 2013 | Texas Instruments TI-36 X Solar Calculator

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TI-89 Titanium: I want to solve a Binomial Theorem problem (x+y)^6 how would i go about solving this in the calculator?

Using elementary algebria in the binomial theorem, I expanded the power (x + y)^n into a sum involving terms in the form a x^b y^c. The coefficient of each term is a positive integer, and the sum of the exponents of x and y in each term is n. This is known as binomial coefficients and are none other than combinatorial numbers.

Combinatorial interpretation:

Using binomial coefficient (n over k) allowed me to choose k elements from an n-element set. This you will see in my calculations on my Ti 89. This also allowed me to use (x+y)^n to rewrite as a product. Then I was able to combine like terms to solve for the solution as shown below.
(x+y)^6= (x+y)(x+y)(x+y)(x+y)(x+y)(x+y) = x^6+6x^5y+15x^4y^2+20x^3y^3+15x^2y^4+6xy^5+y^6

This also follows Newton's generalized binomial theorem:

Now to solve using the Ti 89.

Using sigma notation, and factorials for the combinatorial numbers, here is the binomial theorem:


The summation sign is the general term. Each term in the sum will look like that as you will see on my calculator display. Tthe first term having k = 0; then k = 1, k = 2, and so on, up to k = n.
Notice that the sum of the exponents (n ? k) + k, always equals n.


The summation being preformed on the Ti 89. The actual summation was preformed earlier. I just wanted to show the symbolic value of (n) in both calculations. All I need to do is drop the summation sign to the actual calculation and, fill in the term value (k), for each binomial coefficient.


This is the zero th term. x^6, when k=0. Notice how easy the calculations will be. All I'm doing is adding 1 to the value of k.


This is the first term or, first coefficient 6*x^5*y, when k=1.
Solution so far = x^6+6*x^5*y


This is the 2nd term or, 2nd coefficient 15*x^4*y^2, when k=2.
Solution so far = x^6+6*x^5*y+15*x^4*y^2


This is the 3rd term or, 3rd coefficient 20*x^3*y^3, when k=3.
Solution so far = x^6+6*x^5*y+15*x^4*y^2+20*x^3*y^3


This is the 4th term or, 4th coefficient 15*x^2*y^4, when k=4.
Solution so far = x^6+6*x^5*y+15*x^4*y^2+20*x^3*y^3+15*x^2*y^4


This is the 5th term or, 5th coefficient 6*x*y^5, when k=5.
Solution so far = x^6+6*x^5*y+15*x^4*y^2+20*x^3*y^3+15*x^2*y^4+6*x*y^5


This is the 6th term or, 6th coefficient y^6, when k=6.
Solution so far = x^6+6*x^5*y+15*x^4*y^2+20*x^3*y^3+15*x^2*y^4+6*x*y^5+y^6


Putting the coefficients together was equal or, the same as for when I used the expand command on the Ti 89.

binomial coefficient (n over k) for (x+y)^6

Jan 04, 2011 | Texas Instruments TI-89 Calculator

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On the TI-36X, whihc key is the inverse key and

The inverse key is marked "1/x" (second key on the third row). The natural logarithm key is marked "LN" (fourth key on the top row).

Apr 13, 2010 | Texas Instruments TI-36 X Solar Calculator

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Texas instruments - Orion ti-36x manual


Jan 12, 2010 | Texas Instruments TI-36X Scientific...

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Which calculator is better the TI 36X II(either batery or solar) or teh casio fx-115ES, the price its not a concern its the properties and functions of each one. im gonna study for engineer,and my TI...

I would certainly upgrade my choice to the FX-991ES. It can do (numerical) integrals, derivatives, it has 40 physical constants (instead of 8). It can do unit conversions, and the Natural display is a real pleasure.
Don't get me wrong, I am no TI calculator basher. I have just bought the TiNspire, AND TINspire CAS. I have a TI92, a TI83, Ti BA 35Solar.
If you do become an engineer, the calculators you might want to use (not during the exams) are the TI 89 Titanium, HP49G+/HP50G, the Casio ClassPad 330. You see I recommend the TI89 Titanium because there is a wealth of Engineering programs written for it.

Hope it makes your decision easier.

Nov 08, 2009 | Texas Instruments TI-36X Scientific...

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