14. Solving Linear Homogenous Recurrence Equations – Part I
The lecture explores solving linear homogenous recurrence equations, particularly focusing on cases with non-repeated characteristic roots. It presents a systematic method for constructing characteristic equations and deriving general solutions based on the given degree of the recurrence. The importance of initial conditions in determining unique sequences is emphasized, alongside an illustrative example involving the Fibonacci sequence.
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What we have learnt
- Linear homogenous recurrence equations have solutions based on characteristic roots.
- When roots are distinct, the general solution can be expressed in the form involving arbitrary constants.
- Initial conditions are crucial for determining specific solutions from general forms.
Key Concepts
- -- Linear Homogenous Recurrence Equation
- An equation where the n-th term of a sequence is defined as a linear combination of its previous terms.
- -- Characteristic Equation
- An equation derived from the recurrence relation that helps in finding the roots used to express the general solution.
- -- Characteristic Roots
- The solutions of the characteristic equation, used to form a general solution of the recurrence relation.
- -- Initial Conditions
- Specific values assigned to the first terms of a sequence that help in finding the particular solution from the general form.
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