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# Lecture12 - Engineering Analysis ENG 3420 Fall 2009 Dan C...

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Engineering Analysis ENG 3420 Fall 2009 Dan C. Marinescu Office: HEC 439 B Office hours: Tu-Th 11:00-12:00

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2 Lecture 12 Lecture 12 Last time: Optimization Golden ratio makes one-dimensional optimization efficient. Parabolic interpolation locate the optimum of a single-variable function. fminbnd function determine the minimum of a one-dimensional function. fminsearch function determine the minimum of a multidimensional function . Heuristics for solving search/optimization problems Today: Problem solving in preparation for the quiz Linear Algebra Concepts Vector Spaces, Linear Independence Orthogonal Vectors, Bases Matrices Next Time Gauss elimination
M atrix a rectangular array of elements, e.g., [A]. An element of the matrix e.g., a 23. The size of a matrix is given as m rows by n columns, or simply m by n (or m x n ).

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Lecture12 - Engineering Analysis ENG 3420 Fall 2009 Dan C...

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