vector field specifying location of vectors

*To*: mathgroup at smc.vnet.net*Subject*: [mg92449] vector field specifying location of vectors*From*: yapster <shirley.yap at csueastbay.edu>*Date*: Tue, 30 Sep 2008 21:55:01 -0400 (EDT)

Hello. I'd like to plot a vector field and specify which vectors to plot (for example, only at points with integer coordinates). What I am trying to do is show how a vector field transforms under a planar transformation. So, if F is the planar transformation, a vector V based at the point (x,y) will become a new vector NV based at F(x,y). Thanks for any help.