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REVIEW: Separation of Variables
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Fourier’s Theorem
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Friday Sept 17th: Linear Algebra Vector/matrix operations Index notation Determinants Cartesian position vectors Eigenvalues/eigenvectors
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Scalars and vectors A scalar a is just a single number. A vector is, in the simplest definition, just a list of numbers:
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Matrices
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Determinant of a matrix
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Matrix-vector multiplication, linear systems
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Cross product
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ocean beach 60% speldfar, 40% schwartz A linear system ?
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Crimea R. Rollinonthe R. ocean beach 90% speldfar, 10% schwartz 40% speldfar, 60% schwartz 60% speldfar, 40% schwartz C R A linear system
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Beach sand is 40% from Crimea R., 60% from Rollinonthe R.
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Cartesian position vectors unit vectors
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Cartesian position vectors unit vectors Right-handed Left-handed
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Matrices as transformations
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reversible
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Matrices as transformations reversible
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Matrices as transformations
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Eigenvalues and eigenvectors Typo on p. 50
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Eigenvalues and eigenvectors (special matrix)
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Eigenvalues and eigenvectors
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Finding eigvals and eigvecs
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Example: eigvals 3 rd order polynomial equation
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Example: eigvecs =
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=
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Homework Section 4.1, Section 4.2, Section 4.3, omit #1, Section 4.4, plus:
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