Using a for loop, how can I multiply diagonal elements of a matrix NxN?

I have an exapmle below which gets the product of the fisrt row an N columns. I am new to mathlab.

Using a for loop like below, how can I multiply diagonal elements of a matrix NxN? thank you

NxN

rowelements= 1 ;
product = 1.0 ;

    for(column = 1:N) 
    product = product*B(row1elements,column) ; 
    end

[Star Strider]

You likely do not need the loop.

You can get the diagonal elements of the square matrix with the diag function.

Answer 1

[Matt J]

product = product*B(column,column) ; 

[Stefan Munteanu]

Thank you very much. It helped me understand it too.