用戶:Domon/SandBox

數學式測試:

Chapter 9 Generating Function

9.2 Definition and Examples: Calculational Techniques

(a)

  So   generates

1, 1, 1, ..., 1, 0, 0, 0, ...

(b)

Extending (a),   So   generates

1, 1, 1, ...

(c)