MATLAB: Convert a 3-d matrix to a 2-d matrix

2d matix3d matixagent based modelaxelrod modeltranform matrix

I have this variable 'a'. I want to convert it into a 2-d matrix of dimensions 3*3. The output I am looking for is a 3*3 matrix denoted by 'b'. Any help will be appreciated.
a=randi(10,3,3,2)
val(:,:,1) =
     1     3     8
     6     4     8
     3     1     6
val(:,:,2) =
     4    10     6
     9     9     4
     6     4     7
b =
    14 310 86
    69 49  84
    36 14  67

Best Answer

val(:,:,1) =[     1     3     8
6     4     8
3     1     6];
val(:,:,2) =[     4    10     6
9     9     4
6     4     7];
val(:,:,3) = randi([5,15],3,3)
l = floor(log10(val)+1);
ex = cumsum(l(:,:,end:-1:2),3);
c = cat(3,val(:,:,1:end-1).*10.^ex(:,:,end:-1:1),val(:,:,end))
out = sum(c,3);
or
z = num2cell(cellfun(@num2str,num2cell(val),'un',0),[1 2])
out = str2double(strcat(z{:}))
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