indexing a matrix matlab code example
Example 1: matlab matrix index
A = [16 5 9; 4 2 11; 7 14 9];
A(2,3)
ans = 11
A(1:2,2:3)
ans = 5 9
2 11
Example 2: matlab matrix indexing
v = [16 5 9 4 2 11 7 14];
v(3)
Example 3: matlab array indexing
Indicating indexes between ([]) retrieves corresponding values in Matlab.
array_borders=array([1 end])
As end defines size of the array, retrieve first and last border values of array
even_values=array(2:2:end)
Retrieve only second elements of array, from secon with 2 step iteration
increase until end of array.
first_3_values=array(1:3)
Retrieve only first 3 elements of array.