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Clarify how the integration sensor works (home-assistant/home-assistant#24398) (#9593)

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Emilv2 2019-06-14 16:00:52 +08:00 committed by Fabian Affolter
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source/_components/integration.markdown
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@ -18,7 +18,7 @@ redirect_from:
- /components/sensor.integration/
---
The `integration` platform provides the [Riemann sum](https://en.wikipedia.org/wiki/Riemann_sum) of the values provided by a source sensor. The Riemann sum is an approximation of an **integral** by a finite sum. In this implementation, the default is the Trapezoidal method, but Left and Right methods can optionally be used.
The `integration` platform provides the [Riemann sum](https://en.wikipedia.org/wiki/Riemann_sum) of the values provided by a source sensor. The Riemann sum is an approximation of an **integral** by a finite sum. The integration sensors is updated upon changes of the the **source**. Fast sampling source sensors provide better results. In this implementation, the default is the Trapezoidal method, but Left and Right methods can optionally be used.
## {% linkable_title Configuration %}