HAS202X - Linear algebra for sciences and engineering

1st year B.Sc, Montpellier Faculty of Sciences, 2025

Documents

Link to all ressources on Moodle.

Contents

1) Matrices and vector spaces

  • Matrix operations, powers, properties and computations
  • Special types of matrices
  • Matrix vector space, subspaces
  • $\mathbb{R}^n$ seen as the space of column matrices

2) Linear systems and determinants

  • Solving linear systems using Gaussian elimination
  • Solution space of a system
  • Determinants in dimension 2 and 3
  • Invertible matrices and applications to linear systems

3) Bases, coordinates, and change of basis

  • Bases in $\mathbb{R}^n$, coordinates
  • Intuitive notion of dimension
  • Change of basis and transition matrices

4) Linear maps and diagonalization

  • Linear maps from $\mathbb{R}^p$ to $\mathbb{R}^n$
  • Matrix representation with respect to a basis
  • Change of basis formula
  • Basic diagonalization (only 2×2 and 3×3 examples)
  • Application to linear differential systems
  • Matrix exponential and introduction to nonlinear systems

Main responsible: Laurent Guieu