C# Interactive vs Immediate Window. Differences, purposes and use-cases

Question

These two windows look pretty similar to me, though I've found some differences in using them. Can somebody please explain what the main differences are and what purposes the windows serve?

Answer 1

Immediate window is needed when you want to do some manipulations in the context of your program during the debug. Use variables that already exist, methods, etc.

Also, C# Interactive comes from Visual Studio 2015 update 1 release. C# Interactive is a REPL Editor, i.e. Read-Evaluate-Print-Loop with an advanced editor.