Hongxiao Xiang
Subscriber

Hi Ankush,

Thanks for your reply. 

You said in te fore reply is  that the first argument of the STEP/AKISPL function is an independent varibale. 

I have queried the preprocessor manual. The manual shows

E1 is the real or expression type. So I think velocity function(expression) is also suitable for this clarification. 

Hope for your further views:)