how to access individual elements from a variable?

This is my code s1=[216 46; 176 127; 227 131; 256 170; 176 187];

    a=s1(:,1);
    disp(a);

    b=s1(:,2);
    disp(b);

when i execute this i get 216 176 227 256 176 in a and 46 127 131 170 187 in b.

now i want to access individual values from a and b like i want to print only 2nd value of a and 2nd value of b. How to do it.

Answer 1

[Stephen23]

If you want the second element of a, then use indexing to get the second element of a:

>> a(2)
ans =  176

Or simply from the original array:

>> s1(2,1)
ans =  176

Basic MATLAB concepts (such as how to use subscript indexing) is covered in the introductory tutorials, which are highly recommended for all beginners:

https://www.mathworks.com/help/matlab/getting-started-with-matlab.html