How Extract a value into a cell?

If I have

>> A1

A1 = 

      [263x3 double]    

>> A1{1}

ans =

    1.0e-004 *

   -0.0000         0   -0.0000
   -0.0000   -0.0000   -0.0000
   -0.0000   -0.0000   -0.0000

If I want to extract the differenze between the second and the first element of the first columns of A1 which is a cell how I can do?

Answer 1

[Azzi Abdelmalek]

For your case

A1=num2cell(rand(10,3))
A1{2}-A1{1}

For another column n

n=2
A1{2,n}-A1{1,n}

Answer 2

[Mischa Kim]

A1{1}(2,1)-A1{1}(1,1)