MATLAB - BASIC SYNTAX

BASIC SYNTAX OF MATLAB

• As MATLAB is a high-level computer language, it must be written in a specific manner.
• MATLAB environment behaves like a super-complex calculator. You can enter commands at the >>command prompt.
• MATLAB is an interpreted environment. In other words, you cant write a command in command prompt and it will execute it right away.

For example no.1:-

If we give command to add two digits in the command window, it will show as follows

>>1+2

When you click the RUN button or press the ENTER, MATLAB executes it immediately and the result returned is:–

ans=                     3

For example no.2:-

Another example, when a digit is divided by zero

>>7/0

When you click the RUN button or press the ENTER, MATLAB executes it immediately and the result returned is:–

ans = Inf warning: Division by zero

For example no.3:-

>>524*20.3

When you click the RUN button or press the ENTER, MATLAB executes it immediately and the result returned is:–

ans=             1.0637e+04

For example no.4:-

When a digit raised to the power of another digit

>>5^3

When you press Enter, it executes,

ans=             125

For example no.5:-

To represent in a trigonometric value

>>sin(pi/2)

When you press Enter, it executes, 

ans=             1

Note:-

o   Here we write pi instead of using the symbol, because MATLAB don’t recognize the pi symbol.

o   Also we can use the value of pi which is 3.14 instead of writing pi.

Use Of SEMICOLON ";" in MATLAB:-

Generally in other programming languages semicolon: is used as a statement terminator, but in MATLAB it is also sided for statement terminator as well as to hide what we got after executed some blocks of statements. 

For example no.6:-

x=3; y=x+2

When you Press  enter, it executes,

y=5

Adding comments in MATLAB:-

The per cent symbol(%) is used for indicating a comment line.

For example no.7:-

y=5         %assign the value 5 to y

• if you want to write a block of comments just write it in between the block comment operators % ................% 

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