[gradsusr] Fw: how isen work in grads?

[Mostafa Karampoor]

--- On Tue, 12/9/14, Mostafa Karampoor <mostafa_karampoor at yahoo.com> wrote:

> From: Mostafa Karampoor <mostafa_karampoor at yahoo.com>
> Subject: Fw: how isen work in grads?
> To: gradsusr-bounces at gradsusr.org
> Date: Tuesday, December 9, 2014, 11:25 AM
> 
> 
> --- On Tue, 12/9/14, Mostafa Karampoor <mostafa_karampoor at yahoo.com>
> wrote:
> 
> > From: Mostafa Karampoor <mostafa_karampoor at yahoo.com>
> > Subject: how isen work in grads?
> > To: gradsusr-request at gradsusr.org
> > Date: Tuesday, December 9, 2014, 9:04 AM
> > I need calculation Potential
> > Vorticity in grads.
> > when i write "define part1="isen(dudy,tmpprs,lev,320)
> > 
> > "define part2="isen(dvdx,tmpprs,lev,320)
> > "define part3="isen(dtdp,tmpprs,lev,320)
> > is error,isen is not varable or fanction.
> > why don't work?
> > pleas help me