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block tridiagonal matrix

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Old   June 20, 2007, 20:40
Default block tridiagonal matrix
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Shuo
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Can I solve block tridiagonal matricies using Thomas algorithm?
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Old   June 20, 2007, 20:59
Default Re: block tridiagonal matrix
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jinwon
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Yes! It is for solving that matrix.

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Old   June 20, 2007, 21:12
Default Re: block tridiagonal matrix
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S.E.S.
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Sure, a "block-" Thomas algorithm. At each step, instead of multiplying a row by some component a^-1 = 1/a, you multiply through by the block inverse A^-1.
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