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A comment on Floating point error is the least of my worries (2011). Parent comment
>> A = [0.25510582 0.52746197; 0.80143857 1.65707065];
>> B = [0.79981812; 2.51270273];
>> X = A\B
X =
0.272534072955269 1.384541698505404
ans =
0.799818120000000 2.512702730000000
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>> A = [0.25510582 0.52746197; 0.80143857 1.65707065];
>> B = [0.79981812; 2.51270273];
>> X = A\B
X =
>> A * Xans =
>> A * [-1;2]ans =