How can I make a differential matrics?

Hi all

I have three matrices which obtained from a series of caculations. these matrices are cumulative i.e. values of matrix 2 are equal to ' values of matrix 1 + other values'. also values of matrix 3 are equal to ' values of matrix 2 + other values'. I want to make two matrices including differences between matrices 3 and 2 as well as matrices 2 and 1.It is necessary that all elements of these two matrics are aqual to a single value. How can I write this program? Thanks

Answer 1

[Andrei Bobrov]

1) A,B,C - your matrix

Mx = cat(3,A,B,C);
Out = diff(Mx,1,3);
a = unique(Out);

2) The inverse problem

A - the initial matrix;

b - a scalar, which add to each element of the matrix;

out = bsxfun(@plus,A,b*reshape(0:2,1,1,[]));

[som]

Hi andrei

Could you please explain your answer a bit more??

Thanks

[Andrei Bobrov]

'Out' - two matrices including differences between matrices 1 and 2 as well as matrices 2 and 3;

a - value of elements of matrices 'Out'.