**Introduction**

1. These are basic elements in MATLAB as well as in control design theory.

2. A general matrix A may be written like this:

**Forming a matrix**

1. In MATLAB, vectors and matrices will be typed as:

2. To separate rows, semicolon “;” is used.

3. To separate columns, comma “,” or space “ ” is used.

**Selecting matrix elements**

To get specific part of a matrix, type as follows:

**Forming matrix from 2 vectors**

A matrix can also be created from 2 vectors X and Y as:

**Colon Notation**

It is very useful to create the vectors as:

x=[xi:dx:xf]

where, xi is starting value,

xf is final value, and

dx is increment.

**Delete rows and columns**

Rows and columns can be deleted from a matrix using just a pair of square brackets [].

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