Matrices - UNSA MI 2001
multiplication of matrices, Gauss elimination, inverse.
90 2001
3
U1
algebra, linear algebra
matrix, column, line, rank, determinant, linear system


This is the translation of a sheet designed for first year students of mathematics and computer science at Université de Nice - Sophia Antipolis, of year 2000-2001.  Each student has had 1h30 to work on this sheet.
:U1/algebra/oefmatrix.en
exo=divmatr2x2&exo=divmatl2x2&exo=diagmult2x2&qnum=3&qcmlevel=3
10
1
Multiplication
questions on the multiplication of matrices.
:U1/algebra/dialmatrix.fr
exo=colrow1&exo=colrow2&qnum=2&qcmlevel=3
10
1
Dialogue of matrices
number of columns or rows.
:U1/algebra/visgauss.en
type=system&size=4&field=Q&click=no
10
0.5
Visual Gauss system
solve an ordinary linear system by Gauss elimination.
:U1/algebra/parmsys.en
level=1&size=3&click=yes&range=5&qtype=1
10
1
Parmsys
analyze a linear system with parameters, by Gauss elimination. Level 1.
:U1/algebra/visgauss.en
type=matrix&size=3&field=Q
10
1
Visual Gauss 3x3
find the inverse of a matrix by Gauss method.
:U1/algebra/visgauss.en
type=matrix&size=4&field=Q&click=no
10
1
Visual Gauss 4x4
find the inverse of a matrix by Gauss method.
:U1/algebra/crossmult.en
style=ordinary&level=2
10
1
Cross multiplication 2x2
find the matrix which does not commute with a given matrix.
