% ef_matlab.m
format compact % prevent blank lines
v = zeros(1,3);
v(1)=1.0;
v(2)=1.0e-15;
v(3)=-1.0 % default print
fprintf(1,'formatted print %E  %E  %E  \n', v(1), v(2), v(3))
sum = 0.0;
for i=1:3;
    sum = sum + v(i);
end;
sum = sum*1.0e19  % should be 1,000 with no round off error

sum=1.0e19*(1.0+1.0e-15-1.0) % expression evaluation