Tecplot might be case sensitive. Try "if" instead of IF.

Also, when I define the variable, I do not use brackets.

So I would write: v49 = if({UDM-2}>0, 1, 0)

Hi,

Check the syntax of IF command. It should be:

$!IF

You may need to close the loop by:

$!ENDIF

I hope this will work.

Kuldeep Dagar Thank you for the answer but unfortunately it is not working for me.

I used the following format in the specify equation:

//$! IF ({UDM-2}>0)

{v49}=1

$!ENDIF//

Error:

// Unrecognized command.

Error occurred near position marked with "@" below.

@$!IF({UDM-2}>0 )//

Omer Atasi Thank you for the answer.

I tried to change 'IF' to lower case but giving error.

Also I tried to define new variable without '{}', it showed following error. (screenshot)

Dear Arjun,

You can go thru the command line of tecplot in the attached document. I hope it will be helpful for you.

Interesting question

Dear Arjun,

I wonder if you have solved this problems.

I meet the same problem when using tecplot 2011, however, it's not reproduced in tecplot 2017. So I think you can try latest version tecplot.

Fan E

Dear Fan E,

The problem is not resolved, will try with 2017 version. Thank you for your answer.

Arjun

Yes, Ee Fan is right, its a problem with the older version! 2017 version works

Hello Arjun, Im also facing the same issue. It throws error as I@F, does 2017 Version worked for you? or did u find some solution in 2013?

Hari

maybe you can try this,

{v49} = {IF} ({UDM-2}>0, 1, 0),

I met a similar problem, and I solved this problem by adding {}. I hope it will be helpful for you.