Some initial thoughts for putting PRBMath to use:

• Utilize the unsigned type assuming you are working with non-negative numbers (slightly more gas efficient too!)

• Utilize mul/div functions to preserve precision and avoid overflow

• Perform fixed point conversions once at the start/end to reduce recompilation and scaling errors

• Include base case/early conditional returns to short-circuit cheap paths

• Note that PRBMath works with user defined types

You can utilize unwrap to get the underlying primitive and ud to wrap into the defined type.

function log10From1e8 (uint256 usd) external returns (uint256){ uint256 x = usd * 1e10; // 1e8 -> 1e18 return unwrap(ud(x).log10()); } 

As an alternative to PRBMath, you can also check out Solady. The library contains a number of gas optimized utilities and had an audit completed by Spearbit (sponsored by Base) in March 2025.

Some initial thoughts for putting PRBMath to use:

• Utilize the unsigned type assuming you are working with non-negative numbers (slightly more gas efficient too!)

• Utilize mul/div functions to preserve precision and avoid overflow

• Perform fixed point conversions once at the start/end to reduce recomputation and scaling errors

• Include base case/early conditional returns to short-circuit cheap paths

• Note that PRBMath works with user defined types

You can utilize unwrap to get the underlying primitive and ud to wrap into the defined type.

function log10From1e8 (uint256 usd) external returns (uint256){ uint256 x = usd * 1e10; // 1e8 -> 1e18 return unwrap(ud(x).log10()); } 

As an alternative to PRBMath, you can also check out Solady. The library contains a number of gas optimized utilities and had an audit completed by Spearbit (sponsored by Base) in March 2025.