Libraries for Fixed-Point Arithmetic:
1. ABDKMath64x64 Library
The ABDKMath64x64 library provides high-precision fixed-point arithmetic operations.
Example using ABDKMath64x64:
1. ABDKMath64x64 Library
The ABDKMath64x64 library provides high-precision fixed-point arithmetic operations.
Example using ABDKMath64x64:
2. DSMath Library
DSMath is a comprehensive library used for high-precision arithmetic operations in Solidity. It is especially useful for DeFi
applications where financial calculations require a high degree of accuracy. DSMath provides functions for basic arithmetic, exponentiation, and logarithmic operations with fixed-point arithmetic.
The library includes functions for:
Multiplication and division with scaling (e.g., wmul, wdiv)
Exponentiation and logarithms
Basic arithmetic operations with overflow checks
Best Practices to Avoid Precision Loss
Choose Appropriate Scaling Factors: Use a scaling factor that balances precision and the range of values.
Avoid Intermediate Fractions: Perform scaling before division and revert scaling after operations to minimize precision loss.
Leverage Libraries: Use well-tested libraries for fixed-point arithmetic to reduce errors and improve readability.
Test Thoroughly: Implement extensive tests, including edge cases and large values, to ensure the correctness of arithmetic operations. Additional fuzzing is mandatory.
