# MATLAB: Please explain the above commands,

matrix

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?
 a =     7     3     5     6     2     1
     1     3     5     2     4     6
 [r,c] = find(a<4)