How to return the maximum value of a vector without using the built in function max(x)?

I have to calculate the maximum value of a vector, x, without using the built in function, only using basic mathematical,

relational, and logical operations. Then the maximum must be stored to a variable, y. The script must work with any vector assigned to x.

Answer 1

[Star Strider]

Apparently, you also cannot use a built-in sort algorithm. That leaves you the option of coding your own bubble-sort algorithm, or the Quicksort (link) algorithm.

Answer 2

[KSSV]

K = rand(5) ;
themax = -Inf;
row = 0;
column = 0;
for i = 1:size(K, 1)
    for j = 1:size(K, 2)
        if K(i, j) > themax
            themax = K(i, j);
            row = i;
            column = j;
        end
    end
end