V2 Core ContractsMathOn this pageMathMathdividefunction divide(uint256 a, uint256 b, bool roundingUp) internal pure returns (uint256 ret)lnWadfunction lnWad(int256 x) internal pure returns (int256 r)Returns ln(x), denominated in WAD. Credit to Remco Bloemen under MIT license: https://2π.com/22/exp-ln