MATLAB is a proprietary multi-paradigm programming language and numeric computing environment developed by MathWorks. MATLAB allows matrix manipulations, plotting of functions and data, implementation of algorithms, creation of user interfaces, and interfacing with programs written in other languages. It is commonly used in engineering and scientific applications and provides powerful tools for numerical computation.
Keywords in MATLAB have specific meanings and cannot be used to name variables or functions. The following is a list of MATLAB keywords:
end function if else elseif while for switch case otherwise try catch break continue return
Operators in MATLAB perform various mathematical and logical operations. The following is a list of MATLAB operators:
+ - * / ^ == > < <= >= ~= & | && ||
The following are some commonly used mathematical functions:
sin() cos() tan() exp() log() sqrt() abs() min() max() ceil() floor()
MATLAB supports various data types for different types of numerical and non-numerical data. Some common data types include:
double, single, int8, int16, int32, int64, uint8, uint16, uint32, uint64, char, logical, cell, struct
Operator | Description |
---|---|
^ |
Exponentiation |
* |
Multiplication |
/ |
Division |
+ |
Addition |
- |
Subtraction |
< |
Less than (comparison) |
> |
Greater than (comparison) |
<= |
Less than or equal to (comparison) |
>= |
Greater than or equal to (comparison) |
== |
Equal to (comparison) |
~ |
Logical NOT |
&& |
Logical AND |
|| |
Logical OR |
There are various methods available for manipulating strings in MATLAB:
strlength(), strcat(), str2num(), str2double(), str2mat(), strcmp(), strncmp(), strfind(), strrep(), strtrim(), upper(), lower()
There are various methods available for manipulating arrays in MATLAB:
length(), size(), numel(), reshape(), repmat(), flip(), fliplr(), flipud(), circshift(), find(), sort()
MATLAB provides functions for file I/O operations:
load(), save(), fopen(), fclose(), fread(), fwrite(), fprintf(), fscanf(), dir(), delete()
MATLAB supports object-oriented programming with classes and methods:
methods(), properties(), classdef(), constructor(), destructor()
MATLAB provides functions for working with lists:
unique(), intersect(), setdiff(), setxor(), ismember(), union(), sort(), min(), max()
Functions are essential in MATLAB for modular programming. You can define your own functions using the function keyword:
function result = myFunction(arg1, arg2)
% Function body
result = arg1 + arg2;
end