I need to calculated the height at intermediate grid co-ordinates where I have 3 sets of enclosing co-ordinates and heights.
Formula or UDF solutions welcome!
I need to calculated the height at intermediate grid co-ordinates where I have 3 sets of enclosing co-ordinates and heights.
Formula or UDF solutions welcome!
Last edited by mdmackillop; 12-09-2009 at 11:17 AM. Reason: X1, X2 co-ordinates corrected.
MVP (Excel 2008-2010)
Post a workbook with sample data and layout if you want a quicker solution.
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