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![• Scalar=Primitive=Struct(ural)=sealed[cannot derive]
• You cannot qualify a scalar
• All class goodies (type checking) are (almost) avoided
• Lot of mess:
• Method signs
• Overload collisions
• Custom Types can introduce more significance
• How?
• Like triggers in SQL, .NET has structs (missing in action)
«missing type»=scalars!](https://image.slidesharecdn.com/2022-220323211336/85/Math-with-NET-for-you-and-Azure-11-320.jpg)
Uploaded byMarco Parenzan
Math with .NET for you and Azure
Marco Parenzan discusses the integration of IoT Central with IoT Plug and Play, emphasizing definitions for telemetry and capabilities. He explores .NET 6 and 7 features, such as generic math and value types, alongside practical demonstrations of physics and math in programming. The document highlights the potential of C# scripting and notebook environments for scientific computation.
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Math with .NET for you and Azure
- 1. Marco Parenzan 1nn0va AfterHour FY22 ep.23 // martedì 22 marzo 2022 h.21
- 2. Your contacts Yoursites Your badges • Senion Solution Architect @ beanTech • 1nn0va Community Lead (Pordenone) • Microsoft Azure MVP • Linkedin: https://www.linkedin.com/in/marcoparenzan/ • Slideshare: https://www.slideshare.net/marco.parenzan • GitHub: https://github.com/marcoparenzan Marco Parenzan
- 4. • When youwork with IoT Central, you work with IoT PnP • IoT PnPDigital Twin Definition Language • InterfaceComponentCapability • Capability=Telemetry // Property // Command • When you define a Telemetry, it has • Semantic • Unit • Type • You can do code generation in front of it! Azure IoT Central and IoT PnP
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- 7. • An applicationof the new static generic abstracts in in an interface (argh!) • https://devblogs.microsoft.com/dotnet/preview-features-in-net-6-generic-math/ .net6.net7 is introducing Generic Math
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- 11. • Scalar=Primitive=Struct(ural)=sealed[cannot derive] •You cannot qualify a scalar • All class goodies (type checking) are (almost) avoided • Lot of mess: • Method signs • Overload collisions • Custom Types can introduce more significance • How? • Like triggers in SQL, .NET has structs (missing in action) «missing type»=scalars!
- 12. • ...or moresimpler, structs in C# • Remember: the formal definition says «allocated into the stack, not into the heap» • Be more precise • Reference typea variable, or a parameter, containes a reference to an entity into the heap • Value type a variable, or a parameter, containes directly the entity • Value typecopy semantic • Reference typereference (obviously) semantics • Value types are fast Value Types in .NET
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- 14. • Another «missingin action»: implicit operator and operator overloading • Do you remember that you can overload aritmetic operators to use your value types? • And that you can cast from scalars to structural types (also reference types)? • Do you know that all of these can become a great math? Math with value types
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- 16. • Volt+Volt=Volt (youcan add or subtract homogeneus values) • Volt*Ampere=Ampere*Volt=Watt (multiplication is commutative) • Watt/Ampere != Ampere/Watt (division is not commutative) • ...and remember the plain good old ToString method! Let’s remember physics
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- 20. • Physics andmath is about customizing a job (because you have to «express» some laws) • You have to express calculations • A couple of choices: • CSharp Scripting (Roslyn) • ANTLR «Scripting» in .NET
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- 25. • Mathematica! FromStephen Wolfram! • Now we have it also in .NET • Notebooks • Kernels Where Math and science and code met 30yr ago
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- 28. • Math canbe a lot of fun • .NET can be a lot of fun in the science area Conclusion