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Combination calculator 9 number combination,how many lines will that be

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How do i find out the possible number combinations for the numbers 1238 but 1 and 2 repeat making the numbers become 112338 how can i get a list to print off all the possible combinations

Posted on Mar 18, 2015

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Where is the combination button


On any SHARP scientific calculator the combination button is always above the 5 (except the financial calculator). To get a combination type in the n value (the total number of items) press 2nd F and the 5 button and then type in the number of selected items and press =.

May 29, 2014 | Sharp EL-531VB Calculator

1 Answer

How can I calculate combinations with fx-991ES PLUS?


Use the combination function. It's the shifted function of the divide key, marked nCr. For example, to find the number of combinations of 9 things taken 3 at a time, press 9 SHIFT divide 3 = and see 84.

May 03, 2014 | Casio FX-115ES Scientific Calculator

1 Answer

Binomial distribution


The number of combinations of n objects taken r at a time has a reserved symbol nCr. On calculators it has a special key (or shifted key) marked nCr.
By definition nCr=(n!)/((r!)*(n-r)!)=nC(n-r)
In what follows, I am using parentheses to enclose what is in the denominators). So
10!/(8!2!)=10C2 or 10C8 =45 (they have the same value)
10!/(9!1!)=10C9=10C1=10
10!/(10!0!)=1

Feb 04, 2014 | Texas Instruments TI-34 Scientific...

1 Answer

How do you do a factorial problem 9C4?


To find the number of combinations of nine items taken four at a time, press
9 2nd [nCr] 4 =

nCr is the shifted function of the "8" key.

Dec 13, 2012 | Texas Instruments TI-30XA Calculator

1 Answer

How do I round off?


Press MODE. Use down arrow to move highlight to the line FLOAT. Then use the right arrow to select the number of decimal digits to display. If you choose 0, there will not be any decimals (integer result), and if you choose 9 you will have 9 decimals. Choose the number of digits according to your rounding needs.

Oct 09, 2011 | Texas Instruments TI-83 Plus Calculator

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Okay so i am using a TI-30XA What is the button on this calculator for (Prb) ??


There is no probability key on the 30Xa as there is on the 30XIIS. The shifted functions of the 8 and 9 keys will calculate the number of combinations and permutations, respectively. The shifted function of the 3 key will calculate the factorial. There is no random number generator.

May 09, 2011 | Texas Instruments TI-30XA Calculator

1 Answer

My trignometery calculations are off by one-two points. What can I do to fix it.


I am not quite sure what you mean by "OFF BY ONE-TWO POINTS".
If you have a problem of "precision" you can increase the number of digits that the calculator displays.
  1. Press [MODE]
  2. Use down arrow to highlight the line FLOAT 0 1 2 3 4 5 6 7 8 9
  3. Use right arrow to move cursor to one of the numbers on the line and press [ENTER].
  4. The number you will select will set the number of decimal digits displayed.
Keep in mind though that most of the "precision" one may be seeking is illusory.

When doing trigonometric calculations make sure the angle unit set in the calculator is the one your problem requires (deg, radian.)

Sep 16, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

I need to fix the calculator to float 5 decimals,apparently it's not floating.


If you want your calculator to display the results with 5 decimal digits:
  1. Open the [MODE] configuration screen.
  2. On first line highlight [NORMAL], if it is not already highlighted and press [ENTER] to validate.
  3. Use Down arrow key once to reach the line Float 0 1 2 3 4 5 6 7 8 9
  4. Use right or left arrow key to highlight the number 5 in the foregoing list (Float 0 1 2 3 4 5 6 7 8 9).
  5. Press ENTER to validate your choice
  6. Press [2nd][Quit] to exit the [MODE] configuration screen.

Mar 14, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

Dont know how to add or subtract on it


Hello,
On most calculators you enter operations as you would write then on a line (a single line). This is called algebraic notation.
Say, you wante to calculate 2 +3=?
You turn your calculator on
You clear the screen if is cluttered. (there is a button for that sometines labeled A/C or AC, which stand for Clear All.

You Press the key for number 2 then the key for the plus sign, then the key for 3. You get the result after you press = or ENTER or EXE on Casio calculators. Once you do, that the screen displays 5, the summ of 2 and 3.
Tu summarize (The content of each bracket [] is a key you press.
[2][+][3]= ----> 5 Addition: 2+3=5
[3][x][9]= ----> 27 Multiplication 3 times 9 equals 27
[1][8][/][2]= --->9 Division 18 divided by 2 equals 9
[3][3][-][9]= ---> 24

Hope you will enjoy using your calculator

Sep 01, 2009 | Monroe Office Equipment & Supplies

2 Answers

Combinations and Permutations


You can enter combinations and permutations.

If the order of the selection matters (ie. 1st, 2nd, and 3rd place out of 40 contestants) use permutation. Enter:

40{shift}{nPr}3 and then [=] for your answer set (=59280 possible ways).

IF order doesn not matter (ie. a team of 3 from 40 possible members) then it is a combination. Do the same as above, but substitute {nCr} for {nPr}. (= 9880 possible ways).

For your question: a three-digit set, selecting from 0-9. There is no specified order, it is a combination. The total n=10 (there are 10 digits in the range 0-9) and you are selecting 3.

so.... 10[nCr]3 with give the number of possible combinations.

Feb 16, 2009 | Casio FX-115ES Scientific Calculator

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