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