interpolation ( y1 ; y2 ; y3 ; x1 ; x2 ; x3 ; x1y1 ; x2y1 ; x1y2 ; x2y2 ; rnd )
Interpolates single lines and cross table
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Eric van Oosterom
HarperMac Marine Survey
Function definition: (Copy & paste into FileMaker's Edit Custom Function window)
Works good for cross interpolation in tables and linear interpolation.
Needed a interpolation function that could make a cross interpolation because in my line of work we work with linear and cross table interpolation, could only find other types of interpolation so created this function.
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