MATLAB (matrix laboratory) is a numerical computing environment and fourth-generation programming language. MATLAB stand for matrix laboratory which is a programming language for algorithm development, data analysis, visualization & numerical computation, MATLAB is a technical computing language for engineer & scientist in industry & academia. This solves fundamental problems of engineer & scientist & it support s the vector & matrix operation. It enables fast development & execution. MATLAB lets you execute commands or groups of commands one at a time, without compiling and linking, enabling you to quickly iterate to the optimal solution. By the MATLAB language, you can program and develop algorithms faster than with traditional languages & provides all the features of a traditional programming language, including arithmetic operators, flow control, data structures, data types, object-oriented programming (OOP), and debugging features. because you do not need to perform low-level administrative tasks, such as declaring variables, specifying data types, and allocating memory. In many cases, MATLAB eliminates the need for ‘for’ loops. As a result, one line of MATLAB code can often replace several lines of C or C++ code.

• MATLAB==MATrix LABratory
•  It is widely used to solve different types of scientific problems.
• The basic data structure is a complex double precision matrix.
• Matlab is a software package for high performance numerical computation and visualization.
• It provide hundreds of built in functions for technical computation, graphics and animation.
•  Numerous functions for 2-D and 3-D graphics are available.
•   Its provides easy extensibility with its own high level programming language.
• Basic building block of Matlab is MATRIX and fundamental data type is array.
• Its built in function provides excellent tools for linear algebra computation. Data analysis, signal processing, optimization, numerical solution of ordinary differential equation, quadrature, and many others type of scientific computations.

SYNTAX

The MATLAB application is built around the MATLAB language, and most use of MATLAB involves typing MATLAB code into the Command Window (as an interactive mathematicalshell), or executing text files containing MATLAB code and functions.

>> x = 17
x =
 17
>> x = 'hat'
x =
hat
>> y = x + 0
y =
       104        97       116
>> x = [3*4, pi/2]
x =
   12.0000    1.5708
>> y = 3*sin(x)
y =
   -1.6097    3.0000