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Matrices (Metric)

Class Details

Tom Baker

Learn, or revise, determinants, matrix inverses, Gaussian elimination and eigenvalues/eigenvectors.

Determinants

Determinant of 2 by 2 and 3 by 3 matrices (a Further Maths topic). Cramer's Rule (a First Year university topic).

Inverses

Inverse of 2 by 2 and 3 by 3 matrices (a Further Maths topic).

Gaussian Elimination

Solving systems of equations using Gaussian elimination and LU factorisation; matrix inversion using Gauss-Jordan elimination. A First Year university topic.

Solving systems of equations by reducing a matrix to row echelon form using row operations.

Lesson Not yet graded

Determined, overdetermined and underdetermined systems; unique solutions, and infinite and empty solution sets.

Lesson

Inverting an \(n\) by \(n\) matrix by reducing to diagonal form using row operations.

Lesson

Solving systems of equations by resolving a square matrix into lower-triangular and upper-triangular factors, followed by back- and forward-substitution.

Lesson

Eigenvalues and Eigenvectors

Eigenvalues and eigenvectors of square matrices. You may possible have met this if you've done Further Maths or the equivalent.

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