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# Stable Pool

## Overview

For advantages and use cases of Stable Pools, please refer to the standard documentation.
For more interfaces, such as updating the amplificationParameter, see the StablePool API.

## Interfacing

Some elements to consider when interfacing with Stable Pools:
• Using Stable Math
• Pools have between 2 and 5 tokens
• Pools rely on the amplificationParameter, which is defined at pool creation and can be gradually updated later.

## Getting Pool Data

In addition to the common pool data, you will likely want the following data when interfacing with Stable Pools:

### Amplification Parameter

The Amplification Parameter is stored at the pool level. For example, calling
pool.getGetAmplificationParameter()
returns something resembling
value : 620000
isUpdating : False
precision : 1000
where the amplification parameter is
$\frac{value}{precision} = \frac{620000}{1000}=620$
in this case.