nPr
Syntax: nPr(n, r[)]
(“n” and “r” must be positive integers.)
- Returns the total number of permutations where n is the total number of objects in the set and r is the number of objects chosen from the set.
\(\displaystyle{}_n P_r = \frac{n!}{(n-r)!}\)
nCr
Syntax: nCr(n, r[)]
(“n” and “r” must be positive integers.)
- Returns the total number of combinations where n is the total number of objects in the set and r is the number of objects chosen from the set.
\(\displaystyle{}_n C_r = \frac{n!}{r!(n-r)!}\)
