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MATH 400 (Vectors and Matrices)


DESCRIPTION The course presents the essentials of matrix theory and linear algebra needed in the management,
social and biological sciences, and it provides mathematical background for courses in
multivariate statistics, biostatistics, and econometrics.
(NOTE:  The course is not open to students in the CMPS or Engineering Colleges. 
Credit will only be given for one of Math 240, 400, 461.)
PREREQUISITES One year of college calculus, MATH 140/141  or  MATH 220/221.
TOPICS Systems of Linear Equations
    Echelon forms
    Existence and Uniqueness of solutions
    Applications:  Networks, production planning
Vector and Matrix Equations
    Vectors in Rn
    Matrix notation for systems of equations
    Linear independence
    Introduction to linear transformations
    Applications:  Nutrition and population movement
Matrix Algebra
    Matrix multiplication and inverses
    The invertible matrix theorem
    Application:  Leontief economic models
Vector Spaces
    Vector spaces and subspaces
    Linear independence and bases
    Dimension and rank
    The Rank Theorem for m x n matrices
    Application: Markov Chains
Orthogonality in Rn
    Scalar product
    Orthogonality and projections
    Best approximation and abstract least squares
    Application:  Linear models in statistics
Eigenvalue Problems
    Eigenvalues
    Brief Introduction to determinants the characteristic equation
    Diagonalization of matrices
    Application:  Age-specific population growth
    Application: Difference equations
TEXT Text(s) typically used in this course.