Command List: clearall / ca ==> Resets all turtle parameters to their default values and clears the drawing. cleardrawing / cd ==> Clear the drawing. forward / fd [steps] ==> Moves forward the number of steps specified along the current heading. Each step corresponds to one degree on the sphere. back / bk [steps] ==> Moves the number of steps specified, in the opposite direction of the current heading. Each step corresponds to one degree on the sphere. right / rt [degrees] ==> Adjust heading right by the degrees specified. left / lt [degrees] ==> Adjust heading left by the degrees specified. penup / pu ==> Lifts the "pen" so that additional movement does not draw a line. pendown ==> Lowers the "pen" so that additional movement draws a line. setheading [degrees] ==> Sets the current heading. A heading in degrees from 0 - 180 where 0 is the direction of the "north" pole and 180 is in the direction of the "south" pole. getheading ==> Prints the current heading to the command line window. setposition [x,y] ==> Sets the current position using spherical coordinates. [0,0] is the initial position closest to the viewer. The first parameter specifies the degrees north/south of the equatorial line, while the second parameter specified the degrees along the equator east/west of the origin. Ranges are -180 to 180 for both parameters. getposition ==> Prints the current position to the command line window. set ==> Sets the specified turtle property to the given value. Possible properties are color and pensize. Example: "set color green" Color Values: ( use numeric or string value) black: 0 gray: 5 white: 9.9 red: 15 orange: 25 brown: 35 yellow: 45 green: 55 lime: 65 turquoise: 75 cyan: 85 sky: 95 blue: 105 violet: 115 magenta: 125 pink: 135