- #1
rendinat
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Homework Statement
In a symmetric positive definite matrix, why does max{|aij|}=max{|aii|}
Homework Equations
|aij|≤(aii+ajj)/2
The Attempt at a Solution
max{|aij|}≤max{(aii+ajj)/2
max{|aij|}≤max{aii/2}+max{ajj/2}
max{|aij|}≤[itex]\frac{1}{2}[/itex]max{aii}+[itex]\frac{1}{2}[/itex]max{ajj}
then I am stuck! :(