# Plot Points in Polar Coordinates

 An interactive tutorial on how to plot points given by their polar coordinates. This tutorial also help in gaining a deeper understanding of polar coordinates and may be used with another tutorial on Graphing Polar Equations. Free polar graph paper is available. Interactive Tutorial Using Java Applet Your browser is completely ignoring the tag! 1 - Click on the button above "click here to start" to start the applet and maximize the window obtained. 2 - To plot a point given by its polar coordinates, enter the radial coordinate r and the angular coordinate t (in degrees) and press "plot". To delete all points plotted press "delete all". 3 - Plot points with radial coordinate r constant. Examples: (2 , 45) , (2 , 120) , (2 , 720) , (2 , -900). Change r and start again. What do you notice? 4 - Plot points with angular coordinate t constant. Examples: (3 , 45) , (4 , 45) , (-2 , 45) , (-5 , 45). Change t and start again. What do you notice? 5 - Plot the pair of points: (3 , 120) and (-3 , 120). What do you notice? 6 - Plot the pair of points: (4 , -30) and (-4 , -30). What do you notice? 7 - Repeat plotting pairs of the form (r , t) and (-r , t) and explain the positions of the points. 8 - Plot the points (3 , 45) , (3 , 405) , (3 , 765) , (3 , -315). Explain the position of these points. More references on polar coordinates.