Microsoft's spreadsheet program can do way more than you might imagine. These are the hacks and tricks you need to know.
MrExcel on MSN
Excel formula basics: The role of the dollar sign
This video explains how the dollar sign is used in Excel formulas to control whether cell references stay fixed or change ...
Abstract: Empirical formulas are proposed for the superdirectivities of broadside linear and square arrays. The formulas are derived based on a large amount of numerical results of optimum directivity ...
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