Example of a floating point error bug from today that fixed point wouldn’t have helped: I’m calculating the bisector of two vectors a and b. |a|b + b|a| is numerically unstable if vectors are nearly opposite (and fails entirely if vectors are exactly opposite).
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Yup. The precision just doesn't exist anymore because the decimal places are mapped to 0. It's not a data format issue. It's intrinsic to the actual operation.
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