Hi, I want to solve a system of algebraic equation by Gauss elimination using to significant digit. I am able to solve this, but I have no idea how to set the matlab to store only two significant digit in each step of calculation.

` function Error1 = gauss3(A,b) if(size(b,2)>1); b = b'; end ExtSol = A\b; % This is more efficient than inv(A)*b`

n = length(b); Data1 = []; % Elimination

for k = 1:n-1 for i = k+1:n lambda = A(i,k)/A(k,k); A(i,k:n) = A(i,k:n)-lambda*A(k,k:n); b(i) = b(i) -lambda*b(k); end end % Back Substitution

x(n) = b(n)/A(n,n); for k = n-1:-1:1 x(k) = (b(k)-A(k,k+1:n)*x(k+1:n)')/A(k,k); end xround = round(x,2,'significant'); Error1 = abs(ExtSol-xround'); Data1 = [Data1; ExtSol x' xround' Error1]; disp(' Exact Sol Calculated Rounded Error') disp('________________________________________________________________________________') disp(Data1) end

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