PROGRAMMING (C++)
INTRODUCTIONTO MATLAB
INTRODUCTION
Matlab- which stands for MATrix LABoratory, is a
high-performance language for technical computing. It integrates
computation, visualization, and programming in an
easy-to-useenvironment where problems and solutions are expressed
in familiarmathematical notation.
APPLICATION OF MATLABMath and computationAlgorithm
developmentData acquisitionModeling, simulation, and
prototypingData analysis, exploration, and visualizationScientific
and engineering graphicsApplication development, including
graphical user interface buildingMATLAB SYSTEM Development
Environment.The MATLAB Mathematical Function Library.The MATLAB
Language.Graphics.The MATLAB Application Program Interface
(API).MATLAB INTERFACE
Command Windowtype commands
Current DirectoryView folders and m-files
WorkspaceView program variablesDouble click on a variable to see
it in the Array Editor
Command Historyview past commandssave a whole session using
diary
VariablesNo need for types. i.e.,
All variables are created with double precision unless specified
and they are matrices.
int a;double b;float c;Example:>>x=5;>>x1=2;Array,
Matrixa vectorx = [1 2 5 1]x = 1 2 5 1
a matrixz = [1 2 3; 5 1 4; 3 2 -1]
z = 1 2 3 5 1 4 3 2 -1
transposey = x y = 1 2 5 1
Long Array, Matrix t =1:10 t = 1 2 3 4 5 6 7 8 9 10k =2:-0.5:-1
k = 2 1.5 1 0.5 0 -0.5 -1
B = [1:4; 5:8]B = 1 2 3 4 5 6 7 8
Generating Vectors from functions
Matrix Index
Operators (arithmetic)
Matrices Operations
Given A and B:AdditionSubtractionProductTransposeOperators
(Element by Element)
Operators (Element by Element)a = ab cd
b = ef gh
a.*b = aebf
cgdh
Basic Matrix OperationsInv(A): inverse of ARank(A): rank of
matrix AA: transpose of ADet(A): determinantV= eig(A): eigenvalue
vector of ASize(A): return [m n]Length(A): length of a
vectorLength(A) = max(size(A))
Basic Matrix OperationsB = A(2:4,3:5)B is the subset of A from
row 2 to row 4, column 3 to column 5A(:, 2)=[]Delete second
columnfind(condition) - Returns indexes of As elements that
satisfies the condition.A = [1 2; 3 4], I = find(A vertcat CAT
arguments dimensions are not consistent.
