CASTI-89 TITANIUM · CALC89
nCr(
Returns the number of combinations, the ways to choose r items from n when order does not matter.
Syntax
nCr(Value1, Value2)
- Group
- Probability
- Arguments
- Takes n and r.
- Availability
- Included
Example
| Input | Result |
|---|---|
| nCr(5,2) | 10 |
Typing nCr(5,2) on the home screen and pressing ENTER returns 10.
Related commands
- nPr(Returns the number of permutations, the ways to arrange r items chosen from n when order matters.
- rand(Returns a random number between 0 and 1, or a list of such numbers.
- randBin(Returns a random number of successes from a binomial distribution, or a list of them.
- randInt(Returns a random integer between two bounds, or a list of them.
- randNorm(Returns a random number from a normal distribution, or a list of them.
- randSamp(Draws a random sample of elements from a list.
- RandSeedSets the seed of the random number generator, so a sequence of random results can be repeated exactly.