Combination with Replacement Calculator

Combinations CR(n,r)
Find CR(n,r) where:
CR(n,r) = (n+r-1)! / r! (n - 1)!

n =
r =
Answer:
CR(n,r) = C(n + r - 1,r) =

Copy from text box to paste elsewhere

Calculator Use

Calculate the combinations with replacement for CR(n,r) = C(n+r-1,r) = (n+r-1)! / r! (n+r-1 - r)! = (n+r-1)! / r! (n - 1)!. For n >= 0, and r >= 0.

Combination with Replacement Formula:

CR(n,r) = C(n+r-1,r) = (n+r-1)! / r! (n - 1)!

References

For more information on combinations and binomial coefficients please see http://mathworld.wolfram.com/Combination.html

 

Cite this content, page or calculator as:

Furey, Edward "Combination with Replacement Calculator" From http://www.CalculatorSoup.com - Online Calculator Resource.