You can install them on your computer or run them online.
Sam
-----Original Message-----
From: Phys-l [mailto:phys-l-bounces@phys-l.org] On Behalf Of Donald Polvani
Sent: Friday, November 16, 2012 9:11 PM
To: Phys-L@phys-l.org
Subject: [Phys-L] Electric Field Line Drawing Program
Can anyone recommend a free electric field line drawing program which will run on a Windows computer? Only need simple field configurations. One point charge to several point charges.