Back to Discover
🔢

Stirling numbers of the second kind

math Maturity 11-13

You can group things in many ways.

Set partitions 4; Hasse; circles.svg
Set partitions 4; Hasse; circles.svg
Imagine you have four toys. You can put them into small groups. You can put them into big groups. This helps us count the ways to share. It is a fun math puzzle. How many groups can you make?

51 words
🖼️ Images & Media (2)
File:Set partitions 4; Hasse; circles.svg
Set partitions 4; Hasse; circles.svg
File:Stirling numbers of the second kind - Parity.svg
Stirling numbers of the second kind - Parity.svg
Up Next
🔢
Stirling number
Math
→
More to explore

✨ What else?

Related topics you might enjoy

Stirling number 0% Stirling numbers of the first kind 0% Lah number 0% Bell number 0% Partition of a set 0% Twelvefold way 0%

🔬 Go deeper

More advanced topics to explore

Stirling number Stirling numbers of the first kind Lah number Bell number

🪜 Step back

Simpler topics to build understanding

Partition of a set Catalan number Partial permutation Combination
📚 Content adapted from Wikipedia | Readability: FK 13.3 | Vital Level 5