# Non-Negative Matrix

A Non-Negative Matrix is a matrix whose values are non-negative (composed of non-negative vectors).

**Context:**- It can range from being a Square Non-Negative Matrix to being a Non-Square Non-Negative Matrix.
- It can range from being a Non-Negative Integer Matrix to being a Non-Negative Real Matrix.

**Example(s):**- [math]\begin{bmatrix}1 & 9 & 0 \\0 & 55 & 6 \end{bmatrix}[/math].
- a Positive Matrix.
- …

**Counter-Example(s):**- a Non-Positive Matrix, such as a negative matrix.

**See:**Boolean Matrix, Nonnegative Matrix Factorization.

## References

### 2002

- (Serre, 2002) ⇒ Denis Serre. (2002). “Matrices. Theory and Applications.” In: Grad. Texts in Math, 216.