The quadratic f(x1,x2) = 3(x1 +2x2) 2 +4x 2 2 is positive. Find its matrix A, factor it
Chapter 6, Problem 6.1.9(choose chapter or problem)
The quadratic f(x1,x2) = 3(x1 +2x2) 2 +4x 2 2 is positive. Find its matrix A, factor it into LDLT , and connect the entries in D and L to 3, 2, 4 in f .
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