Forward Difference Table in MATLAB | M-file

Code :

delx=5

x=45:delx:65;

y=[2.8710,2.4040,2.0830,1.8620,1.7120];

n=5;

for i=1:n

    diff(i,1)=y(i);

end

for j=2:n

    for i=1:n-j+1

        diff(i,j)=diff(i+1,j-1)-diff(i,j-1);

    end

end

fprintf('\n******forward difference formula table****');

fprintf('\n\tx\t    y\t        del1\t     del2\t    del3\t    del4');

for i=1:n

    fprintf('\n   %.f',x(i));

    for j=1:n-i+1

        fprintf('\t   %.4f',diff(i,j));

    end

end

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