Click and drag to draw a Coaster Layout Once you release the Mouse, watch the Coaster Train Ride it and find the Slope (dy/dx) along the way! Pressing 1, 2, and 3 draws sine, quadratic, and cube root functions, respectively. If you draw close enough to the starting position (within 25 pixels), the track will connect, and the coaster will be able to travel continuously across it. Holding the Spacebar as you draw makes it so the train faces left instead of right. Made for Calculus AB, enjoy!