Factorial Calculator
Factorial Calculator
Symbols: C-Combination number P-Permutation number (Current textbook is A) N-Total number of elements R-Number of elements involved in the selection
!-Factorial, such as 5! =5*4*3*2*1=120 C-Combination P-Permutation
(Current textbook is A-Arrangement)
Factorial Calculator
Symbols: C-Combination number P-Permutation number (the current textbook is A) N-Total number of elements R-Number of elements involved in the selection
!-Factorial, such as 5! =5*4*3*2*1=120 C-Combination P-Permutation (the current textbook is A-Arrangement)