Generic Math is easy to dismiss as a feature for numerical libraries. Its more important contribution is static abstraction: generic code can require operators, identities, parsing, and other type-level behavior without reflection, dynamic, or a runtime object hierarchy.
This guide builds the feature from first principles, examines the contracts in System.Numerics, and applies the same mechanics to parsing, generated database models, DDD types, architectural boundaries, tensors, and SIMD. It also covers the limitations and alternative designs, because static abstract constraints are powerful enough to become expensive when used casually.
What C# Generic Math Changed
Let’s briefly return to the past.
On November 8, 2022, .NET 7 shipped the first production release of Generic Math.
