MATLAB Programming Fundamentals - MathWorks

Symbol Symbol Name Role Description Examples

: Colon

• Vector creation


• Indexing


• For-loop iteration

Use the colon operator to create regularly spaced vectors, index into arrays, and define the bounds

of a for loop.

• colon


• “Creating, Concatenating, and Expanding Matrices”

Create a vector:

x = 1:10

Create a vector that increments by 3:

x = 1:3:19

Reshape a matrix into a column vector:

A(:)

Assign new elements without changing the shape of an array:

A = rand(3,4);

A(:) = 1:12;

Index a range of elements in a particular dimension:

A(2:5,3)

Index all elements in a particular dimension:

A(:,3)

for loop bounds:

x = 1;

for k = 1:25

x = x + x^2;

end

2 Program Components