hi my matrix=12x5, i need to subtract all these and finally get 12x1 i.e 12x1-12x2, result of (12x1-12x2)-12x3,then result of ((12x1-12x​2)-12x3)-1​2x4.......​..........​.so on

plz help me with matlab code

Answer 1

[Ahmed raafat]

you said that your matrix is 5 cols so (your matrix variable is mat

out=mat(:,1);  
for i=2:5
    out=out-mat(:,i);
end

This worked for me alot

Answer 2

[Roger Stafford]

Let M be your 12 by 5 matrix and V your result.

V = M(:,1)-sum(M(:,2:end),2);