1
$\begingroup$

With combinations ($_{x}C_{y}$), one can notate them via $x \choose y$.

With permutations ($_{x}P_{y}$), is there a notation similar to that of combinations? Or should one always write $_{x}P_{y}$ or $P(x, y)$?

$\endgroup$
1
  • 1
    $\begingroup$ Re the cited article in the answer of Siong Thye Goh, specifically see the k-permutations of n section. $\endgroup$ Jun 24, 2021 at 7:11

1 Answer 1

2
$\begingroup$

Wikipedia shows us other alternatives. In particular we can also write it as $(x)_y$ and $x^{\underline{y}}$.

It is important to be clear and we should use the common notation to avoid confusion.

$\endgroup$

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .