superyngo

Function Int2d(rowLookup As Double, colLookup As Double, lookupRange As Range) As Double
'This function performs 2 dimensional linear interpolation using built-in linear functions
'Lookup range includes column and row lookup values
Dim Row, col As Integer
Dim RowVals, ColVals, lookup As Variant
Dim sl1, sl2, sl3, int1, int2, int3, col1, col2 As Double
    Row = 1
    col = Row
    On Error Resume Next
    Row = WorksheetFunction.Match(rowLookup, lookupRange.Offset(1, 0).Columns(1), 1)