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Multi Dimensional Arrays?????????

Posted on 1998-05-23
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Last Modified: 2010-04-16
Can anyone explain how I go about setting up and using a multi dimensional array. I have to write a program that will calculate the standard deviation of a bunch of numbers. The thing is though, there are about 6 lots of numbers. I can do a sinlge array ( ???? : Array [1..120] of real ) but for more columns I'm completely stuck. PLEASE HELP!!!
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Question by:Dave091277
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jackb022197 earned 200 total points
ID: 1217036
As an example: This is how you would create a two-dimensional array that can hold all the values in a table that contains 20 columns and 20 rows:

type
 TTable = array[1..20, 1..20] of Double;

Then you can declare a variable of the TTable type:

var
 BigTable: TTable;

To initialize all the values in the table to 0.0, you could use nested for loops:

var
 Col, Row: Integer;
...
for Col := 1 to 20 do
 for Row:= 1 to 20 do
   BigTable[Col, Row] := 0.0
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