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A fundamental question about interpolate

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Old   August 22, 2011, 15:12
Default A fundamental question about interpolate
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Kai
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Is there any difference between
Code:
fvc::interpolate(alpha*rhoa)
and
Code:
fvc::interpolate(alpha)*fvc::interpolate(rhoa)
Is that difference negligible?
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Old   August 22, 2011, 15:34
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Mohammad
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hi,
just an example:
interpolate between point1 and point 2 with linear scheme and find the middle value:
(x1*y1+x2*y2)/2 not equal to((x1+x2)/2)*((y1+y2)/2)
I think it is clear!
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