#
OEF subspace definition
--- Introduction ---

This module actually contains 21 exercises on the definition of
subspaces of vector spaces.
You are given a vector space and a subset defined in various ways;
up to you to determine whether the subset is a subspace.
See also the collections of exercises on
vector spaces in general or
definition of vector spaces.

### Continuous functions

,

### Increasing functions

,

### Crossed Matrices

### Matrices and determinant

### Matrices and elements

### Multiplied matrices

.

### Matrices and rank

### Matrices with power

### Periodic functions

### Polynomials and coefficients

### Polynomials and degrees

### Polynomials and integral

### Polynomials and integral II

### Polynomials and roots

### Polynomials and roots II

### Polynomials and values

### Polynomials and values II

.

### Polynomials and values III

.

### Real functions

### Square matrices

.

### Vectors of R^3

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- Description: collection of exercices on the definition of subspace of vector spaces. This is the main site of WIMS (WWW Interactive Multipurpose Server): interactive exercises, online calculators and plotters, mathematical recreation and games
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