A one variable data table is quite ideal for this ..

You have the formula in B1: =SUM(A1:A20)
(B1 is the output cell of interest)

Put in C10: =B1
(just a simple link to the output cell)

Fill* the numbers 1,2,3, ... into B11:B10000,
i.e. into a range just to the left of the output range in C11:C10000
*Put in B11: 1, in B12: 2, then select B11:B12 and fill down to B10000

Select B10:C10000

Click Data Table
Leave the "Row input cell" box empty
Put in Column input cell: B10 (say*)
Click OK

*Can be any empty cell in the vicinity of the selected range, e.g.: B9

In C11:C10000 will be computed 9,990 randomized results for B1

Each press of F9 will generate afresh another 9,990 sets

Freeze the results elsewhere via a copy paste special values

Adapt to suit ..

Note that although the TABLE function (e.g.: {=TABLE(,B10)} ) will appear in
every cell in C11:C10000 and looks very much like an array formula, it
cannot just be entered as such. The construct of the data table must be
done / invoked via the Data Table menu / steps outlined

And as data tables are calc-intensive, you might also want to switch the
calc mode from "Automatic" to either "Automatic except tables" or "Manual"
(via checking the option in: Tools Options Calculation tab)

--
Rgds
Max
xl 97
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GMT+8, 1° 22' N 103° 45' E
xdemechanik <atyahoo<dotcom
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"vegas" wrote in
message ...

For Example,
From column A1 to A20 I assign 20 random numbers (A1=rand(), A2=rand(),
.. A20=rand()).
Then I put B1=sum(A1,A2,...,A20)
Every time I press "F9", I got a outcome of B1
Now I want to get the outcome 1000 times, and assign the data to other
columns such as C11 to C10000. How to do that?


--
vegas
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