# A First Course in Linear Algebra

A First Course in Linear Algebra is an introductory textbook designed for university sophomores and juniors. Typically such a student will have taken calculus, but this is not a prerequisite. The book begins with systems of linear equations, then covers matrix algebra, before taking up finite-dimensional vector spaces in full generality. The final chapter covers matrix representations of linear transformations, through diagonalization, change of basis and Jordan canonical form. Along the way, determinants and eigenvalues get fair time.

License:

**GNU Free Documentation License**. This license is considered to be some to be the most open license. It allows reuse, remixing, and distribution (including commercial), but requires any remixes use the same license as the original. This limits where the content can be remixed into, but on the other hand ensures that no-one can remix the content then put the remix under a more restrictive license.Formats:

**PDF**. A Portable Document Format (PDF) file is can be opened using the free Acrobat Reader. It is not an editable format.**TeX**. A TeX file use the TeX or LaTeX typesetting engine. TeX software is available free for most platforms. It is an editable format**HTML**. An HTML file is a web page document. It can be opened by any web browser. It is an editable format.

Openness Rating (0-4): 3

- Systems of Linear Equations
- What is Linear Algebra?
- Solving Systems of Linear Equations
- Reduced Row-Echelon Form
- Types of Solution Sets
- Homogeneous Systems of Equations
- Nonsingular Matrices
- Vectors
- Vector Operations
- Linear Combinations
- Spanning Sets
- Linear Independence
- Linear Dependence and Spans
- Orthogonality
- Matrices
- Matrix Operations
- Matrix Multiplication
- Matrix Inverses and Systems of Linear Equations
- Matrix Inverses and Nonsingular Matrices
- Column and Row Spaces
- Four Subsets
- Vector Spaces
- Vector Spaces
- Subspaces
- Linear Independence and Spanning Sets
- Bases
- Dimension
- Properties of Dimension
- Determinants
- Determinant of a Matrix
- Properties of Determinants of Matrices
- Eigenvalues
- Eigenvalues and Eigenvectors
- Properties of Eigenvalues and Eigenvectors
- Similarity and Diagonalization
- Linear Transformations
- Linear Transformations
- Injective Linear Transformations
- Surjective Linear Transformations
- Invertible Linear Transformations
- Representations
- Vector Representations
- Matrix Representations
- Change of Basis
- Orthonormal Diagonalization

Supplements: None