# Stirling2nd function computes the Stirling numbers of the second kind.

### Description

This function returns the estimated Stirling numbers of the second kind *i.e.*, the number of ways of partitioning a set of *n* objects into *k* nonempty groups.

### Usage

1 | ```
Stirling2nd(n,k)
``` |

### Arguments

`n` |
number of objects. |

`k` |
number of groups ( |

### Value

The Stirling number of the 2nd kind for *n* elements and *k* groups or *NaN* (if the Stirling number for those *n* and *k* is greater than 1e300).

### Examples

1 2 3 4 | ```
Stirling2nd(n=3,k=2)
# Expected value=3
Stirling2nd(n=300,k=20)
# Expected value=NaN
``` |