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improved sentence about Kahan summation a bit

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Ahmet Inan 2018-03-03 12:51:42 +01:00
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@ -8,7 +8,7 @@ What we have included so far:
### [kahan.hh](kahan.hh)
When working with [Floating-point arithmetic](https://en.wikipedia.org/wiki/Floating-point_arithmetic) we soon realize, that addition is not necessarily [associative](https://en.wikipedia.org/wiki/Associative_property).
Whenever we need to add numbers with an ever decreasing magnitude to an sum (of the previous numbers) with an ever increasing magnitude, the [Kahan summation algorithm](https://en.wikipedia.org/wiki/Kahan_summation_algorithm) comes in handy and helps keeping the error growth small.
For example, whenever we need to add values with an ever decreasing magnitude to a running sum with an ever increasing magnitude, the [Kahan summation algorithm](https://en.wikipedia.org/wiki/Kahan_summation_algorithm) comes in handy and helps keeping the error growth small.
### [window.hh](window.hh)