Question: Removing data from a table

Is there a quick way to remove a value corresponding to a given row and column position from within a table?

 

For example, say I wanted the result written out for the 4th column, 3rd row, and all I'd have to do would be enter say row:=3;  column:= 4; and have the data written out.  I've done something before like this in Excel with an IF command, but I can't get it working in Maple.

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