10 Largest numbers in a matrix

how to find 10 biggest numbers from a Matrix, also how to find the indexes of those 10 biggest numbers in the matrix. Thanks.

[Daniel]

Are you asking for a specific command, or how to go about creating a program that will get you that result from a series of calculations replicating what you yourself would do "by inspection"?

It should be straightforward how to do the latter. I don't think I can help with the former.

Answer 1

[per isakson]

The largest value of magic(7) is 49

    M = magic(7);

    [ val, ix ] = sort(M(:),'descend');
    [rr,cc] = ind2sub( [7,7],ix(1:10) );

    >> [rr(1),cc(1)]
    ans =
         7     4

    >> M(rr(1),cc(1))
    ans =
        49

    >> M(rr(10),cc(10))
    ans =
        40

is one way to find the 10 largest values