Polar Coordinates

Introduction:
              Polar coordinates are of the form (r,q) where r is the distance from the origin and q is the angle made by that point with the x-axis. Coordinate systems are really nothing new than a manner to define a point in space. The Cartesian coordinate system at point is given the coordinate (x,y) and we use this to define the point by starting at the origin and then moving x units horizontally follow by y units vertically.
Figure below shows how a polar coordinate point is plotted.

              We alter the  polar coordinates to rectangular coordinates and from rectangular coordinates to polar coordinates.The some basic functions in polar coordinates using a graphing calculator. After running through these equipment, the student must be able

• to convert from rectangular coordinate to polar coordinates
• to convert from polar coordinate to rectangular coordinates
• to identify some standard polar graphs
• to plot point in polar coordinates
• to table polar equations using a graphing calculator.

Hope you liked the above explanation. Please leave your comments, if you have any doubts.