(This is a cross-post)

Hello;

I'm trying to correctly pass the range B11:C14 to the Function MyRoots() and
return the results by the array function to cells I11:J13.

Notice the use of ReDim. Declaring Dim a(m+1,2) As Double in Function
MyRoots() would produce a compile error: "Constant expresion required", and
also I couldn't declare "a" as a 2D dynamic array!

I suspect the array variables declaration in the following example is the
problem.
The array Function MyRoots() incorrectly returns 0.0 results to cells I11:J13.

cell B8::3
cell B9: myTrue
cells B11:C14 numerical values
cells I11:J13:: array function {=MyRoots(B11:C14, B8, B9)}

Function MyRoots (a, m As Integer, polish As String)
ReDim a(m + 1, 2) As Double
ReDim roots(m, 2) As Double
Dim j As Integer, its As Integer
Dim x(2) As Double
ReDim ad(m + 1, 2) As Double
.......................................my code............
For j = 1 To m + 1
ad(j, 1) = a(j, 1)
ad(j, 2) = a(j, 2)
Next j
.......................................my code............
Call Laguer (ad, j, x, its)
.......................................my code............
roots(j, 1) = x(1)
roots(j, 2) = x(2)
.......................................my code............
MyRoots = roots
End Function

Sub Laguer (a, m, x, its)
Dim x1(2) As Double
.......................................my code............
x(1) = x1(1)
x(2) = x1(2)
.......................................my code............
Exit Sub
End Sub

Your expert help would be greatly appreciated.

Regards.