Permutations and Combinations
Press
to select PRB. The permutation of n things taken r at a time, nPr, is calculated as follows. For
5
P
3
enter 5
3
.
The combination of n things taken r at a time, nCr, is calculated as follows. For
6
C
4
enter 6
4
.
4 
.
to select PRB.
The permutation of n things taken r at a time, nPr,
is calculated as follows. For 5P3 enter
5 3 .
4 .