13. Counting Using Recurrence Equations
The chapter introduces counting using recurrence equations, detailing how this technique simplifies counting problems in discrete mathematics and computer science. It explains the construction of recurrence relations and their solution methods, including iterative techniques. Furthermore, it explores linear homogeneous recurrence equations and emphasizes the uniqueness of solutions when provided with initial conditions.
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What we have learnt
- Recurrence equations simplify many counting problems.
- Various methods exist for solving recurrence equations, including iterative methods.
- The uniqueness of solutions to recurrence equations depends on the provided initial conditions.
Key Concepts
- -- Recurrence Equation
- An expression that defines a sequence recursively by relating each term to preceding terms.
- -- Initial Conditions
- Specific values given at the start of a recurrence relation, which help to determine the unique solution of the equation.
- -- Linear Homogeneous Recurrence Equation
- A recurrence relation in which each term is a linear combination of previous terms, where the coefficients are constants.
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