IsNormal

### Type of issue

Missing information

### Description

[Enter feedback here]
```true if value is normal; otherwise, false.```
I mean that is a zero value information. That is what the name expresses. But what is meant with "Normal"

### Page URL

https://learn.microsoft.com/en-us/dotnet/api/system.numerics.inumberbase-1.isnormal?view=net-9.0#system-numerics-inumberbase-1-isnormal(-0)

### Content source URL

https://github.com/dotnet/dotnet-api-docs/blob/main/xml/System.Numerics/INumberBase`1.xml

### Document Version Independent Id

39653173-8e6e-5387-fd3e-f36b7e1fb52e

### Platform Id

90f254b1-c168-6be0-b81b-49e8928a5c12

### Article author

@dotnet-bot