Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
1995
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 1995

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: PolarPlot ???

  • To: mathgroup at christensen.cybernetics.net
  • Subject: [mg805] Re: [mg751] PolarPlot ???
  • From: Anthony Rebello <arebello at knox.edu>
  • Date: Fri, 21 Apr 1995 01:44:27 -0400

On 12 Apr 1995, Seth B. Lipschitz wrote:

> Can someone explain to me how I can plot vectors in polar coordinates 
> given the {r and theta} values?  Also, is there a way to attach another 
> vector to the end of the first vector that has a different {r and theta} 
> value?  Thank you very much.
> 
> please respond via e-mail
> 
> -seth
> --
>              "My Blood Runs Cold,  My MEMORY has just been sold!"
>               Seth B. Lipschitz      =======>  sbl9404 at is.nyu.edu         
> ---------------------------------------------------------------------------
> 
> 

Hi Seth,
	There is a very useful package in the standard Wolfram packages 
called Graphics`Arrow`  

In[14]:= ?Arrow

Arrow[start, finish, (opts)] is a graphics primitive
   representing an arrow starting at start and ending at
   finish.

So Show[Graphics[Arrow[{0,0},{r Cos[theta],r Sin[theta]}]]] will plot the 
vector, (r,theta) in polar coordinates and

Show[Graphics[Arrow[{r1 Cos[theta1],r1 Sin[theta1]},
	{r2 Cos[theta2],r2 Sin[theta2]}]]]

will plot the vector (r2,theta2) starting at the point (r1,theta1).

	-Anthony Rebello
	Knox College 
	Math Deparetment


  • Prev by Date: Re: Some Mathematica-related URL's
  • Next by Date: Defining your own Derivative
  • Previous by thread: PolarPlot ???
  • Next by thread: Re: How do you input a solution from FindRoot into another equation?