### Visual Studio release None ### Link to speclet - [Speclet](https://github.com/dotnet/csharplang/blob/main/proposals/user-defined-compound-assignment.md) ### Link to Pull request - [PR](https://github.com/dotnet/roslyn/pull/78400) ### New behavior This should consider some mathematical type (or structure of math types) where this can be applicable. ### New tutorials _No response_ --- [Associated WorkItem - 431830](https://dev.azure.com/msft-skilling/Content/_workitems/edit/431830)