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