1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Polar equation problem

  1. May 21, 2010 #1
    1. The problem statement, all variables and given/known data
    let r = sin(t)+ cos(t)
    sketch the graph

    2. Relevant equations

    3. The attempt at a solution

    i really don't know how to start this off.
    i know some working should be done in order to sketch it but what?
  2. jcsd
  3. May 21, 2010 #2
    If you were sketching a graph in the Cartesian plane (x,y), how would you do it? You'd pick some x points, calculate the y value, and plot the points, and then infer the shape of the curve from that.

    It's no different here. Let t take on a number of values in its domain, and calculate r. Then plot those points in polar coordinates.
  4. May 21, 2010 #3
    really? ohkay~
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Polar equation problem Date
Diffusion equation in polar coordinates Wednesday at 2:48 PM
How do I finish this polar equations problem? Sep 6, 2014
[Not Homework!] Polar Equation Problem Involved Tangents Apr 15, 2012
Polar equation problem May 17, 2011
Polar equation problems May 13, 2011