make alternate diagonal to zero and etc..

[ro...@igib.in]

more at

https://groups.google.com/forum/?fromgroups#!newtopic/matlab-class

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%----for making second diagonal numbers of matrix equal to zero---

function out=diagonaltozeroplus(in)

r=length(in(:,1));

c=length(in(1,:));

if r==c

out=in;

for countrow=1:r;

for countcol=1:c;

            M=mod(countrow+countcol,2);

            if M==0;

                out(countrow,countcol)=0;

            end

end

    

end

else

    out={'Matrix is not symmetric'};

end

end

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%-------making a matrix into a single colums vector---------

function out=makeonecolumn(input)

in=length(input(:,1));

jn=length(input(1,:));

for i=1:in;

    for j=1:jn;

            

                out((in*(j-1)+i),1)=input(i,j);

            

    end

end

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