Expression Tree Tutorial - Knowledge Base (KB)

Code quotations and Expression trees

I wonder if there is any difference in how the two features are implemented under the hood? I.e. Aren't just code quotations built on top of the old good expression trees?...Thanks.

How do I create a Linq expression tree with an F# lambda?

Here's what can be done in C# -...var two = 2; System.Linq.Expressions.Expression<System.Func<int, int>> expr = x => x * two; expr.Compile().Invoke(4); // returns 8 ...I wish to do the precise equivalent in F#. Here's what I tried, but did not compile -..