How to turn a string formula into a “real” formula

Question

I have 0,4*A1 in a cell (as a string). How can convert this \"string formula\" into a real formula and calculate its value, in another cell?

Answer 1

Evaluate might suit:

http://www.mrexcel.com/forum/showthread.php?t=62067

Function Eval(Ref As String)
    Application.Volatile
    Eval = Evaluate(Ref)
End Function