# What is matrix in chemistry

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*Area of Expertise - *Analytical chemistry

Matrix refers to all sample components except for the analyte.

See also: sample, analyte, object

*Area of Expertise - *mathematics

A matrix is a two-dimensional, tabular arrangement of mathematical expressions. Matrices are an important mathematical concept with many applications in the natural sciences.

*Area of Expertise - *Cell biology, microbiology

In biology, a matrix is understood to be a space or a supporting medium. In particular, these are the interiors of various organelles (e.g. the mitochondria) and the extracellular matrix, the mixture of proteins and saccharides in the intercellular space; also the space between the membrane envelope and the capsid in enveloped viruses.

See also: matrix protein

### Learning units in which the term is dealt with

### Matrices - definition, shapes and types20 min.

*mathematics**Linear Algebra**Matrices and matrix algebra*

A matrix (Mz. Matrices) is an arrangement of numbers or mathematical quantities in rows and columns enclosed in brackets. For example, the coefficients of two linear equations with two unknowns form a 2 x 2 matrix with two rows and two columns. This learning unit introduces the concept of the matrix and discusses its various forms and types.

### Solving systems of linear equations45 min.

*mathematics**Linear Algebra**Systems of linear equations*

An overview of the methods for solving systems of linear equations is given.

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