MATLAB: Please explain the above commands,

Question

a=[7 3 5; 6 2 1]; dd=find(a<4)

dd =

     3
     4
     6

How it is possible to display the 4 in that ans? and my condition is to find the <4 values in matrix a. But how it was display the 4 also?

Please anyone explain me…

Answer 1

Ramya, dd contains the position numbers of all elements in matrix a that are smaller than 4, which would be 3, 2, and 1.

 a =
     7     3     5
     6     2     1

The position number of the elements is counted sequentially row by row, and column by column:

     1     3     5
     2     4     6

If you want row and column indices use

 [r,c] = find(a<4)