location of the i'th element

hi

A is a matrix

Iam using a for loop on all the elements in A like this

n = numel(A);
for i = 1 : n
    A(i);
end

but i need the element location in the original matrix

so my quastion is there away to find the i'th elements location in A ?

or if there is another way to run loop on all the elements?

[Stephen23]

"i need the element location in the original matrix"

And you have got it already: i is its linear index.

"is there away to find the i'th elements location in A"

The linear index of the i-th element of A is i.

[Adam]

What do you mean by 'location'? i is its location as a 1d index.

You can use

doc ind2sub

to convert to 2d subscripts if you want, or just do the double loop around both dimensions. Or preferably don't do a loop at all, but that would depend entirely what you are actually doing in the loop body.

Answer 1

[JESUS DAVID ARIZA ROYETH]

you can use nested loops

for i = 1 : size(A,1)
    for j=1:size(A,2)
    A(i,j)
    end
end

with a loop:

n = numel(A);
for i = 1 : n
[row,col]=ind2sub(size(A),i);
    A(row,col)
end

[victor hanna]

thanks

i wonder if there is away using one for

[JESUS DAVID ARIZA ROYETH]

n = numel(A);
for i = 1 : n
[row,col]=ind2sub(size(A),i);
    A(row,col)
end