Polar Plotting with TI-83/84 Calculators
Set your calculator in "degree" mode and "polar" graphing mode (MODE key)
Set the graph window parameters (WINDOW key)
Graph a few functions, for example
Try some other functions, for example \(r=sin(N\theta)+C\) where \(N\) is an integer and \(C\) is any number.
Add a cosine into the mix, try \(r=sin(2\theta)+cos(3\theta)+1.5\). (This is a bit too big to show with the window settings from above; use ZOOM FIT, ZOOM SQUARE to see it.)
Where Are Polar Coordinates and Graphs Used in the Real World?