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# Superposition

Superposition 叠加

Linearity 线性

Suppress 镇压；使什么止住

The principle of superposition is another name for the additivity property of Linearity: $$f(x\_1 + x\_2) = f(x\_1) + f(x\_2)$$

To solve a circuit using superposition:

> 1. Suppress all power sources
>
>    > To suppress a voltage source, replace it with a short circuit. (replace it with conductive wire) To suppress a current source, replace it with an open circuit. (cut wire off)
> 2. Analyze the resulting simpler circuits individually.
> 3. Calculate the sum of individual results.