### Scrolling

X and Y axis scaling in both 2D and 3D graphs can be adjusted using the mouse wheel. wheel-up scrolls up (increases both YMIN and YMAX by ten percent of the Y range, and increases both Y2MIN and Y2MAX likewise), and wheel down scrolls down. shift-wheel-up scrolls left (decreases both XMIN and XMAX, and both X2MIN and X2MAX), and shift-wheel-down scrolls right. control-wheel-up zooms in toward the center of the plot, and control-wheel-down zooms out. shift-control-wheel-up zooms in along the X and X2 axes only, and shift-control-wheel-down zooms out along the X and X2 axes only.