Kahan summation algorithm
= Kahan summation algorithm
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= Kahan summation
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{synonym}
= Compensated (Kahan) summation
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= Kahan compensated summation
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{synonym}
A <summation> <algorithm> that keeps a correction for low-order information lost when adding <floating-point numbers>. Feeding that correction into subsequent additions can greatly reduce accumulated rounding error compared with straightforward summation.