Since no one is asswering my question, may be people do not understand
it. Let me give more example.
Usually, we use a fixed number of parameters/inputs or a range for a
UDF.
Example:
Function xyz(a as double, b as double) as double
xyz = a + b
End Function
Or
Function xyz(rng as range) as double
for each cell in rng
xyz = xyz + cell
next
End Function
But how can I have a function that allows users to select any number
of parameters like the SUM function?
In a SUM function, users can select multiple cells and ranges. As a
programmer, we do not know how many they willl select into the
function. How can we code such a function?
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