> For the complete documentation index, see [llms.txt](https://docs.algebra.finance/algebra-integral-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.algebra.finance/algebra-integral-documentation/algebra-v1-technical-reference/contracts/api-reference-v2.0-directional-fees/v2.0-directional-fees-core/derivedstate.md).

# DerivedState

Pool state that is not stored

Contains view functions to provide information about the pool that is computed rather than stored on the blockchain

## Functions

### getInnerCumulatives

`function getInnerCumulatives(int24 bottomTick, int24 topTick) external view returns (uint160 innerSecondsSpentPerLiquidity, uint32 innerSecondsSpent)` view external

Returns a snapshot of seconds per liquidity and seconds inside a tick range *Developer note: Snapshots must only be compared to other snapshots, taken over a period for which a position existed. I.e., snapshots cannot be compared if a position is not held for the entire period between when the first snapshot is taken and the second snapshot is taken.*

| Name       | Type  | Description                 |
| ---------- | ----- | --------------------------- |
| bottomTick | int24 | The lower tick of the range |
| topTick    | int24 | The upper tick of the range |

**Returns:**

| Name                          | Type    | Description                                                                    |
| ----------------------------- | ------- | ------------------------------------------------------------------------------ |
| innerSecondsSpentPerLiquidity | uint160 | The snapshot of seconds per liquidity for the range                            |
| innerSecondsSpent             | uint32  | The snapshot of the number of seconds during which the price was in this range |