# Constants
#### MAX\_PROTOCOL\_FEE\_RATIO\_D3
```solidity
uint8 constant MAX_PROTOCOL_FEE_RATIO_D3 = 0.25e3;
```
#### MAX\_PROTOCOL\_LENDING\_FEE\_RATE\_D18
```solidity
uint256 constant MAX_PROTOCOL_LENDING_FEE_RATE_D18 = 0.02e18;
```
#### MAX\_POOL\_FEE\_D18
```solidity
uint64 constant MAX_POOL_FEE_D18 = 0.5e18;
```
#### MIN\_LOOKBACK
```solidity
uint64 constant MIN_LOOKBACK = 30 minutes;
```
#### MAX\_TICK\_SPACING
```solidity
uint64 constant MAX_TICK_SPACING = 10_000;
```
#### NUMBER\_OF\_KINDS
```solidity
uint8 constant NUMBER_OF_KINDS = 4;
```
#### NUMBER\_OF\_KINDS\_32
```solidity
int32 constant NUMBER_OF_KINDS_32 = int32(int8(NUMBER_OF_KINDS));
```
#### MAX\_TICK
```solidity
uint256 constant MAX_TICK = 322_378;
```
#### MAX\_TICK\_32
```solidity
int32 constant MAX_TICK_32 = int32(int256(MAX_TICK));
```
#### MIN\_TICK\_32
```solidity
int32 constant MIN_TICK_32 = int32(-int256(MAX_TICK));
```
#### MAX\_BINS\_TO\_MERGE
```solidity
uint256 constant MAX_BINS_TO_MERGE = 3;
```
#### MINIMUM\_LIQUIDITY
```solidity
uint128 constant MINIMUM_LIQUIDITY = 1e8;
```
#### MERGED\_LP\_BALANCE\_ADDRESS
```solidity
address constant MERGED_LP_BALANCE_ADDRESS = address(0);
```
#### MERGED\_LP\_BALANCE\_SUBACCOUNT
```solidity
uint256 constant MERGED_LP_BALANCE_SUBACCOUNT = 0;
```
#### ONE
```solidity
uint128 constant ONE = 1e18;
```
#### ONE\_SQUARED
```solidity
uint128 constant ONE_SQUARED = 1e36;
```
#### INT256\_ONE
```solidity
int256 constant INT256_ONE = 1e18;
```
#### ONE\_D8
```solidity
uint256 constant ONE_D8 = 1e8;
```
#### ONE\_D3
```solidity
uint256 constant ONE_D3 = 1e3;
```
#### INT\_ONE\_D8
```solidity
int40 constant INT_ONE_D8 = 1e8;
```
#### HALF\_TICK\_D8
```solidity
int40 constant HALF_TICK_D8 = 0.5e8;
```
#### DEFAULT\_DECIMALS
```solidity
uint8 constant DEFAULT_DECIMALS = 18;
```
#### DEFAULT\_SCALE
```solidity
uint256 constant DEFAULT_SCALE = 1;
```
#### EMPTY\_PRICE\_BREAKS
```solidity
bytes constant EMPTY_PRICE_BREAKS = hex"010000000000000000000000";
```
---
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