How to resolve the algorithm Stirling numbers of the second kind step by step in the Mathematica / Wolfram Language programming language
How to resolve the algorithm Stirling numbers of the second kind step by step in the Mathematica / Wolfram Language programming language
Table of Contents
Problem Statement
Stirling numbers of the second kind, or Stirling partition numbers, are the number of ways to partition a set of n objects into k non-empty subsets. They are closely related to Bell numbers, and may be derived from them.
Stirling numbers of the second kind obey the recurrence relation:
Let's start with the solution:
Step by Step solution about How to resolve the algorithm Stirling numbers of the second kind step by step in the Mathematica / Wolfram Language programming language
Explanation:
The provided Wolfram code performs calculations related to Stirling numbers of the second kind, which are used to count the number of ways to partition a set of objects into a given number of non-empty subsets.
Line 1:
TableForm[Array[StirlingS2, {n = 12, k = 12} + 1, {0, 0}], TableHeadings -> {"n=" <> ToString[#] & /@ Range[0, n], "k=" <> ToString[#] & /@ Range[0, k]}]
- This line creates a TableForm that displays a table of Stirling numbers of the second kind.
Array[StirlingS2, {n = 12, k = 12} + 1, {0, 0}]
generates a 2D array with dimensionsn + 1
xk + 1
and fills it with the Stirling numbers of the second kind.TableHeadings -> {"n=" <> ToString[#] & /@ Range[0, n], "k=" <> ToString[#] & /@ Range[0, k]}
sets the column and row headings for the table, which are the values ofn
andk
, respectively.
Output:
This generates a table that contains Stirling numbers of the second kind from n = 0
to n = 12
for each value of k
from k = 0
to k = 12
.
Line 2:
Max[Abs[StirlingS2[100, #]] & /@ Range[0, 100]]
- This line finds the maximum absolute value of the Stirling numbers of the second kind for
n = 100
fromk = 0
tok = 100
. StirlingS2[100, #]
evaluates the Stirling number of the second kind forn = 100
and eachk
in the range.Abs
takes the absolute value of each result.Max
finds the maximum value among the absolute values.
Output:
This produces a single value representing the maximum absolute value of the Stirling number of the second kind for n = 100
.
Source code in the wolfram programming language
TableForm[Array[StirlingS2, {n = 12, k = 12} + 1, {0, 0}], TableHeadings -> {"n=" <> ToString[#] & /@ Range[0, n], "k=" <> ToString[#] & /@ Range[0, k]}]
Max[Abs[StirlingS2[100, #]] & /@ Range[0, 100]]
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