Purdue University

Review of lesson 4.4-4.5 for MA 262 (Linear Algebra & Differential Equations) at Purdue University. Content based on class textbook Differential Equations & Linear Algebra by C. Henry Edwards and David E. Penney (ISBN: 9780536264923). 4.4 covers bases and dimensions of vector spaces, including the definition(s) of a basis of a vector space, the standard basis of R^n, finite vs. infinite dimensionals, and relationships between bases, span, linear independence, and number of vectors in a set. De...

Review of lesson 4.3 for MA 262 (Linear Algebra & Differential Equations) at Purdue University. Content based on class textbook Differential Equations & Linear Algebra by C. Henry Edwards and David E. Penney (ISBN: 9780536264923). 4.3 covers criteria for linear independence/dependence and procedure to express a given vector as a linear combination of vectors. Reviews concepts of span, relationship between span and linear combinations, and the Rank-Nullity theorem.

Review of lesson 4.2 for MA 262 (Linear Algebra & Differential Equations) at Purdue University. Content based on class textbook Differential Equations & Linear Algebra by C. Henry Edwards and David E. Penney (ISBN: 9780536264923). 4.2 covers vector spaces and subspaces in further detail (from 4.1) with multiple example cases for more complex evaluations (drawn from previous exams). Includes definition of vector spaces/subspaces, distinction between trivial and proper subspaces, procedure to ex...

Review of lesson 4.1 for MA 262 (Linear Algebra & Differential Equations) at Purdue University. Content based on class textbook Differential Equations & Linear Algebra by C. Henry Edwards and David E. Penney (ISBN: 9780536264923). 4.1 defines vector spaces and various pertinent concepts to evaluate their existence. These include the definition and meaning of linear independence/dependence, linear combinations, span, null space, and requirements to be a vector space (closure under vector multipl...

Review of lesson 3.6 for MA 262 (Linear Algebra & Differential Equations) at Purdue University. Content based on class textbook Differential Equations & Linear Algebra by C. Henry Edwards and David E. Penney (ISBN: 9780536264923). 3.6 covers determinants. Specific concepts include cofactor expansion formula/procedure, Cramer's rule (definition and applications), row and column properties, and matrix transposes.

Review of lesson 3.5 for MA 262 (Linear Algebra & Differential Equations) at Purdue University. Content based on class textbook Differential Equations & Linear Algebra by C. Henry Edwards and David E. Penney (ISBN: 9780536264923). 3.5 covers inverse matrices, including definitions, significance of invertibility, criteria for invertibility, and the procedure to obtain an inverse matrix.

Review of lessons 3.1, 3.2, 3.3, and 3.4 for MA 262 (Linear Algebra & Differential Equations) at Purdue University. Content based on class textbook Differential Equations & Linear Algebra by C. Henry Edwards and David E. Penney (ISBN: 9780536264923). 3.1 introduces linear systems by defining requirements and possible solution outcomes. 3.2 covers matrices and Gaussian elimination, specifically reviewing the details of matrix construction, types of matrices (i.e. coefficient matrix, augmented ...

Review of lesson 1.6 for MA 262 (Linear Algebra & Differential Equations) at Purdue University. Content based on class textbook Differential Equations & Linear Algebra by C. Henry Edwards and David E. Penney (ISBN: 9780536264923). 1.6 covers substitutions methods to solve differential equations (DEs) + methods to solve exact equations. Notable subtopics include: v-substitution, Bernoulli equations, exact equations, and second-order reducible differential equations. Derivation of v-substitutio...

Review of lesson 2.2 for MA 262 (Linear Algebra & Differential Equations) at Purdue University. Content based on class textbook Differential Equations & Linear Algebra by C. Henry Edwards and David E. Penney (ISBN: 9780536264923). 2.2 covers the definition of autonomous first-order differential equations, critical points (CP) of these equations, types of behavior at critical points, criteria for each of these behaviors, and the procedure to determine the overall behavioral designation at each ...

Review of lessons 1.2, 1.4, and 1.5 for MA 262 (Linear Algebra & Differential Equations) at Purdue University. Content based on class textbook Differential Equations & Linear Algebra by C. Henry Edwards and David E. Penney (ISBN: 9780536264923). 1.2 covers integrals as general and particular solutions for differential equations. Procedure is demonstrated to obtain solution for special case differential equation (DE) of the form dy/dx = f(x). 1.4 covers separable equations and applications--tha...