Question about Casio FX-115ES Scientific Calculator

2 Answers

Combinations and Permutations

What are the steps for calculating combinations and permutations.
How do I input the data such as a three digit set using 0-9.

Posted by on


2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

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.

Posted on Jul 22, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 68 Answers

I do not think you can do that with your calculator.

Combinations and permutations reffer to mathematical definitons of such.
e.g How many five card combinations are possible out of 12 card set.

nPk=n!/(n-k)! and

Posted on Feb 16, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

How many 5 digit arrangements (combinations) are there using numbers 1 thru 10

There are 252 combinations of ten items taken five at a time.
If the order matters then there are 300,240 permutations of ten items taken five at a time.

Feb 26, 2015 | Office Equipment & Supplies

1 Answer

Im looking for the total combination for this nuber 13 20 31 36 41 45 permutations i think its called

Do you want combinations or permutations? They're different things. A combination of n items taken m at a time, sometimes written "nCm", selects m items from a group of n without regard to order. A permutation of n items taken m at a time, sometimes written "nPm", selects m items from a group of m with regard to order.

Given six numbers, there are six combinations of one number, 15 combinations of two numbers, 20 combinations of three numbers, 15 combinations of four numbers, six combinations of five numbers, and one combination of six numbers.

Given six numbers, there are six permutations of one number, 30 permutations of two numbers, 120 permutations of three numbers, 360 permutations of four numbers, 720 permutations of five numbers, and 720 permutations of six numbers.

Oct 22, 2014 | Office Equipment & Supplies

1 Answer

Number combinations

One-number combinations: { 1 2 6 9 }
Two-number combinations: { 12 16 19 26 29 69 }
Three-number combinations: { 126 129 169 269 }
Four-number combinations { 1269 }

Or did you want permutations?

Jul 07, 2014 | Computers & Internet

1 Answer

How to do combinations

Look for a key marked nCr for combinations, or one marked with nPr for permutations. The marking may be on the calculator plate. In that case you will use the Shift, 2nd or 2ndF key before.
Enter n, press the key then r.
For the factorial fuction x! or n!, you enter n then press the key. .

May 20, 2012 | Canon F-502 Calculator

1 Answer

How do i find !

The symbol is used to represent the factorial function. That function appears in probability theory, so you will find it under the Prob menu.

Turn Claculator ON
If you see no icons, press the MENU key.
Press 1 to select Run/Matrix home screen.
Press the OPTN key
Press F6> to move to the next page of TABS.
The probability Menu is activated by pressing the F3 key.
The factorial function is shown at the bottom of the screen as x!
Enter the number whose factorial you want to calculate, and press F1.
The calculator cannot calculate the factorial of numbers larger than 69.

Note: If you have to calculate permutations and combinations, do not use the definition in terms of factorials. Rather, use nPr for permutations and nCr for combinations.


Feb 06, 2012 | Casio FX9750GII Graphic Calculator

1 Answer

How do I do permutations on the Ti 84 how do I do combinations on the Ti 84

Use the "nPr" and "nCr" commands in the MATH PRB menu.

To calculate the permuations of five items taken three at a time, press
5 MATH left-arrow 2 3 ENTER

To calculate the combinations of five items taken three at a time, press
5 MATH left arrow 3 3 ENTER

Sep 10, 2011 | Office Equipment & Supplies

1 Answer

How do i calculate combinations

Your calculator has three keys, next to which are the following markings:n! , nCr, and nPr. The one with the exclamation point is for factorials. The second is for combinations, and the third with permutations.
Syntax of the command.
If the markings are on the keys, the functions are accessed directly. If the markings are on the body of the calculator, you access the functions by pressing SHIFT and the key.

12 [!] gives 12 factorial
12 [nCr] 4 gives the combinations of 12 objects taken 4 at a time (order not important)
12 [nPr] 4 gives the permutations of 12 objects taken 4 at a time (order is important.)

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

1 Answer

I'm trying to learn Permutations and Combinations in my Algebra class and it gives us generic formulas like nPr=n!over(n-r)! and nCr=n!overr!(n-r)! and I was wondering how I'm supposed to do those. I was...

Yes, your calculator can do them. Press the PRB key to bring up the Probability menu. Among them you'll find nPr and nCr for permutations and combinations, as well as ! for the factorial.

To compute 4C2, press 4 PRB right-arrow 2 ENTER. Permutations work the same way, only without the right-arrow.

Apr 23, 2010 | Texas Instruments TI-34II Explorer Plus...

1 Answer

I want to calculate permutation and combination.

Use the sequence [2ndF][nPr] for permutations and [2ndF][nCr] for combinations.
Exemples: 10(nPr)3 is entered as 10[2ndF][nPr]3 [=] gives 720
5(nCr)2 is entered as 5 [2ndF][nCr] 2 [=] gives 10

Hope it helps.

Apr 09, 2009 | Sharp EL-531VB Calculator

1 Answer

Permutations and Combinations

To find the number of combinations of 40 items taken 4 at a time (or 40 items taken 36 at a time), press 4 0 x<>y 3rd [nCr] .

Mar 28, 2009 | Texas Instruments TI-36X Scientific...

Not finding what you are looking for?
Casio FX-115ES Scientific Calculator Logo

2,052 people viewed this question

Ask a Question

Usually answered in minutes!

Top Casio Office Equipment & Supplies Experts


Level 3 Expert

102366 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18410 Answers

Piyal Perera
Piyal Perera

Level 3 Expert

528 Answers

Are you a Casio Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides