# IMM Notation

We use the notation X and Y for LP tokens and ETH in the pool respectively.

* Xc , Yc - Current reserves of X and Y&#x20;
* ![](https://976579298-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Ftor5sd7sW1BdSm5MKyoe%2Fuploads%2FF1AVAXMwA4wFrqOB1nqY%2Fimage.png?alt=media\&token=9fc90b79-cd09-496c-8c49-6269e1b589d9) – Current Oracle based market price (\*)&#x20;
* a , b - Parameters in the range of: 0≤a<∞, 0≤b<1

(\*) These parameters values are set by protocol admin according to the pool asset types and liquidity level.

Computed parameters:

![](https://976579298-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Ftor5sd7sW1BdSm5MKyoe%2Fuploads%2FozmUDWpfM0bJv21oVe3x%2Fimage.png?alt=media\&token=0a851d23-977e-4ea0-b2a6-c3f94a03763e)

