[hasanifte]

How can I take derivative of x velocity wrt y?

Whats is the syntax

I tried following syntax but it did not work

{k} = dd (x velocity)/ddy

[hasanifte]

Please help

[JerimiahLee]

Hello Hassan,

The Tecplot 360 manual will provide you all of the necessary syntax for our Data Alter Specify Equation tool. It is Chapter 20, Section 1.1 Equation Syntax.

To take the derivative of X Velocity the equation is ddy({X Velocity})

[P Sharma]

Hi,
I am comparing tecplot generated data (by Alter Data) with metlab.
following are the equation in tecplot:
{u}=sin({x}) * cos({y})
{v}=cos({x}) * sin ({y})
{duxx}=ddx({u})
{duyy}=ddy({u})

where x varies from 0 to 6 same as y 0 to 6 (uniform grid).
derivative in x is correct, but in y direction result is not expected. magnitude of very high value such as 10^37 occurs.