Vector Fields
10-24-2014, 10:59 PM
Post: #1
 mkspence Junior Member Posts: 12 Joined: Aug 2014
Vector Fields
Is there an app/command for plotting vector fields like F(x,y) = <x,y> or F(x,y) = <y,x>?
10-24-2014, 11:44 PM
Post: #2
 Alberto Candel Member Posts: 169 Joined: Dec 2013
RE: Vector Fields
There is plotfield
10-27-2014, 01:47 AM
Post: #3
 mkspence Junior Member Posts: 12 Joined: Aug 2014
RE: Vector Fields
plotfield appears as though it plots the slope/derivative of a function. I want to plot a vector field such as F(x,y) = <y,x> which plots as a counter clockwise rotation. Is there some way to do that with plotfield?
10-27-2014, 06:45 AM
Post: #4
 parisse Senior Member Posts: 1,320 Joined: Dec 2013
RE: Vector Fields
Something like plotfield(5*[-y,x],[x=-1..1,y=-1..1])
10-27-2014, 03:11 PM
Post: #5
 Wes Loewer Senior Member Posts: 459 Joined: Jan 2014
RE: Vector Fields
(10-27-2014 06:45 AM)parisse Wrote:  Something like plotfield(5*[-y,x],[x=-1..1,y=-1..1])

I find the 'normalize' option very helpful in making it look "nice."
plotfield(-x/y,[x = -1 .. 1,y = -1 .. 1],'normalize')
10-27-2014, 08:51 PM
Post: #6
 Stefan Member Posts: 87 Joined: Dec 2013
RE: Vector Fields
Hi mkspence,
A while ago I wanted to do the same. I didn't like the plotfield command very much either so I started to program something on my own. Look in this thread on the HP support forum:
http://h30499.www3.hp.com/t5/Calculators...E6uxh987VM

The program is usable, but I never completed it really. But maybe its something from where you can start.
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