Differential Equations Lecture Work Solutions 317

Differential Equations Lecture Work Solutions 317 - a. The...

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a. The 1-norm (column sum) for the matrix A = 123 256 369 The sum of elements in each column: 1+2+3=6 2+5+6=13 3+6+9=18 The maximum is 18, so || A || 1 =18 The -norm (row sum): The sum of elements in each row is the same since the matrix is symmetric, so || A || The 2-norm is the same as the spectral norm since the matrix is symmetric. We need to Fnd the eigenvalues of A 1 λ 23 25 λ 6 36 9 λ
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