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Mark J Price 2023-03-25 15:23:46 +00:00
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@ -4,6 +4,6 @@ If you find any mistakes in the seventh edition, *C# 11 and .NET 7 - Modern Cros
[**Errata** (35 items)](errata.md): Typos, tool user interface changes, or mistakes in code that would cause a compilation error that prevents a successful build.
[**Improvements** (26 items)](improvements.md): Changes to text or code that would improve the content. These are optional.
[**Improvements** (27 items)](improvements.md): Changes to text or code that would improve the content. These are optional.
All errata and improvements will be included in the 8th edition planned for publishing in November 2023. To be included they must be submitted by mid-September 2023.

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**Improvements** (26 items)
**Improvements** (27 items)
If you have suggestions for improvements, then please [raise an issue in this repository](https://github.com/markjprice/cs11dotnet7/issues) or email me at markjprice (at) gmail.com.
@ -18,6 +18,7 @@ If you have suggestions for improvements, then please [raise an issue in this re
- [Page 339 - Viewing source links with Visual Studio 2022](#page-339---viewing-source-links-with-visual-studio-2022)
- [Page 343 - Packaging a library for NuGet](#page-343---packaging-a-library-for-nuget)
- [Page 351 - Using non-.NET Standard libraries](#page-351---using-non-net-standard-libraries)
- [Page 357 - Working with complex numbers](#page-357---working-with-complex-numbers)
- [Page 444 - Connecting to a database](#page-444---connecting-to-a-database)
- [Page 453 - Scaffolding models using an existing database](#page-453---scaffolding-models-using-an-existing-database)
- [Page 533 - Building websites using ASP.NET Core](#page-533---building-websites-using-aspnet-core)
@ -364,6 +365,24 @@ for (int i = 0; i < matrix.Axes[1].Points.Length; i++)
}
```
# Page 357 - Working with complex numbers
> Thanks to [Masoud Nazari](https://github.com/MAS-OUD) for raising this [issue on 25 March 2023](https://github.com/markjprice/cs11dotnet7/issues/50).
In Step 2, I show the default formatting for complex numbers in Western/British culture i.e. using round brackets and commas, as well as a custom format, as shown in the following output:
```
(4, 2) added to (3, 7) is (7, 9)
4 + 2i added to 3 + 7i is 7 + 9i
```
In other cultures the default formatting for complex numbers might look different, for example, as shown in the following output:
```
<4; 2> added to <3; 7> is <7; 9>
4 + 2i added to 3 + 7i is 7 + 9i
```
In the next edition, I will add a note about this for those readers in countries with unusual complex number formats.
# Page 444 - Connecting to a database
I wrote, "To connect to a SQLite database, we just need to know the database filename, set using the parameter `Filename`."