The (m 1) (m 1) tridiagonal matrix is involved in the Backward Difference method
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is involved in the Backward Difference method to solve the heat equation. For the stability of the method we need Ï(Aˆ’1) a. α = 1 / 4
b. α = 1 / 2
c. α = 3/4
When is the method stable?
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1+ 2a 1+2a -a A = 1+ 2a
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