professorserna.com

Polar Equations and Graphs

I have removed all annotations from my videos that were used to correct errors (YouTube is getting rid of Annotattions) Any errors in the videos have been corrected in the NOTES. If you have already subscribed, you can use your User Name and your Password to download the NOTES in a MS WORD FILE. or a PDF FILE. (If you have trouble downloading the file on your phone, use the Opera Browser) If you haven't subscribed, subscribe now

A Polar Coordinate System is based on a point, called the Pole, and an axis, called the Polar Axis. Any point on the plane is described by the distance from the pole to the point, called the radius,r, and the angle, theta, from the initial position of the polar axis to the final position. Some equations of graphs look much simpler in polar. For example, the equation of the circle X^2 + Y^2=4 , in polar coordinates is R=2. In this video we do a number of examples using polar paper and discuss some symmetry issues.