Error in UDF

Vidya Raja

Hi all,

I tried to compile a UDF, but it gave me an error which said:

Error: CAR: invalid argument [1]: wrong type [not a pair] Error Object: ()

What does this mean and how do I fix it? Also, I am not able to see the waveform of the unsteady velocity on the screen. How do I make this possible?

Thanks, Vidya