Cylindrical coordinates are expressed in the form [math]\left(r,\theta,z\right)[/math]. [br][br]For [math]\theta[/math], this applet uses units of [b]RADIANS[/b]. Type "pi" if the angle is a multiple of [math]\pi[/math].[br][br]Input the radius, the angle in radians, and the z-value. Then use the slider to watch the point as it is plotted.[br][br]The ORANGE point is the point plotted in cylindrical coordinates.[br]For reference, you can toggle the "Show Cylinder" on or off by checking the box.