What is a Double Array

Concept question:

What is a 20x10x3 double array?

Thanks,

Amanda

Answer 1

[Azzi Abdelmalek]

a=[1 2;3 4]; is 2x2 double array % double is a class

a =

     1     2
     3     4

if you have 3 matrix

 a=[1 2;3 4], b=[3 5;6 7]; c=[7 8;9 8] % for example
% you can put them in one array  2x2x3

 x(:,:,1)=a;
 x(:,:,2)=b;
 x(:,:,3)=c;

%and the result will be

x(:,:,1) =

     1     2
     3     4

x(:,:,2) =

     3     5
     6     7

x(:,:,3) =

     7     8
     9     8

Answer 2

[Samuel Gray]

"What is a M,N... double array"

...it's an array of doubles, DP values

had me confused for a moment there, myself