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Question: how can i calculate the parameter of the matrix which can render it positive definite

Question:how can i calculate the parameter of the matrix which can render it positive definite

Wei Li 52 Maple
example
March 20 2007
0
here is the matrix,for example, result:=Matrix(2, 2, {(1, 1) = 4*c-4, (1, 2) = -2*c+3, (2, 1) = -2*c+3, (2, 2) = 4*c-15/4}) for what region of c, this matrix is positive definite? I typed the following in Maple, > IsDefinite(result); / 2 \ 0 <>
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