COMBINATIONS AND PERMUTATIONS
Permutations: P(n,r) = n!/(n-r)! eg. P(5,2)=20
Combinations: C(n,r) = P(n.r)/r! eg. C(5.2)=10
Note: big numbers shown approximate/rounded
EDUCATIONAL RESOURCES
CALCULATORS
EQUATION SOLVERS
TUTORIALS AND PRACTICE TESTS
PRIME FACTORIZATION
ANDROID MOBILE CALCULATOR
