• Calculating hydraulic gradient

    Hello everybody,
    I have a 3D lyerd model representing a circular excarvation pit for which I caculated the hydraulic head for each node (defined by X, Y, Z).
    Now I am looking for a possibility to compute the hydraulic gradients from this data set (i.e. with X, Y, Z, hydHead).
    "Zebra" suggested in 2008 to use Tecplt 360, but unfortunately didn't mention how to perfor this. I now loaded my Data into Tecplot 360 using my data set in Excel (97), but have no clue how to get the hydraulic gradients using Tecplot.

    Any ideas how to proceed?