Math lib solidity

solidity-math-lib.md

	Advantages	Disadvantages
ABDKMath, Q64.64	• 64 decimals • should be the most gas efficient: what about casting uint256 => int128?	• everything in int128 => uint/int conversion necessary • less maintained: last commit February 16, 2023 • difficult to read: everything in binary • no type safety
PRBMath: QU60.18	• 18 decimals • faster than ABDKMath for abs, exp, exp2, gm, inv, ln, log2 • better maintained than ABDK: commit December 26, 2024 • no conversion needed • type safety	slower than ABDKMath for avg, div, mul, powu and sqrt
FullMath (Uniswap)	• programmable decimals: 512bits support => exact decimals (96 or 128 in Uni) • robustly tested • very light: mul & div • highly optimized version of SNX	• no advanced functions • no type safety
Ray / SNX SafeDecimal Math	• super simple: mul & div (RAY) • robustly tested	• no advanced functions • less optimized and less precise than FullMath • no type safety
Solady's	• advanced functions: ln, log, log2, ... • full mulDiv	• primarily WAD, except apparently full div, logS, rpow & sqrt • no type safety
DSMath (DappHub, Maker)	• lightweight: basic functions + rpow (power on RAY) • mul, div, min, max	• RAY or WAD only, so max 9 extra decimals • no type safety
FixidityLib	/	too old, ^0.5.0