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Problem with DDI derivative
Hi,
I would like to do a time derivative in tecplot. For this I tried to make a derivative from the zones using indices derivatives DDI. However it gives the error that "DDI is not avaible for FE Grid". But the manual refers to FE Grids "For finite-element zones, spatial derivatives are calculated using the Moving Least-Squares technique", this doesn't make sense for me. Does anyone had the same problem? Thx in advance! |
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