AXIS  Control axis scaling and appearance.
    AXIS([XMIN XMAX YMIN YMAX]) sets scaling for the x- and y-axes
       on the current plot.
    AXIS([XMIN XMAX YMIN YMAX ZMIN ZMAX]) sets the scaling for the
       x-, y- and z-axes on the current 3-D plot.
    AXIS([XMIN XMAX YMIN YMAX ZMIN ZMAX CMIN CMAX]) sets the
       scaling for the x-, y-, z-axes and color scaling limits on
       the current axis (see CAXIS).
    V = AXIS returns a row vector containing the scaling for the
       current plot.  If the current view is 2-D, V has four
       components; if it is 3-D, V has six components.

    AXIS AUTO  returns the axis scaling to its default, automatic
       mode where, for each dimension, 'nice' limits are chosen based
       on the extents of all line, surface, patch, and image children.
    AXIS MANUAL  freezes the scaling at the current limits, so that if
       HOLD is turned on, subsequent plots will use the same limits.
    AXIS TIGHT  sets the axis limits to the range of the data.
    AXIS FILL  sets the axis limits and PlotBoxAspectRatio so that
       the axis fills the position rectangle.  This option only has
       an effect if PlotBoxAspectRatioMode or DataAspectRatioMode are
       manual.

    AXIS IJ  puts MATLAB into its "matrix" axes mode.  The coordinate
       system origin is at the upper left corner.  The i axis is
       vertical and is numbered from top to bottom.  The j axis is
       horizontal and is numbered from left to right.
    AXIS XY  puts MATLAB into its default "Cartesian" axes mode.  The
       coordinate system origin is at the lower left corner.  The x
       axis is horizontal and is numbered from left to right.  The y
       axis is vertical and is numbered from bottom to top.

    AXIS EQUAL  sets the aspect ratio so that equal tick mark
       increments on the x-,y- and z-axis are equal in size. This
       makes SPHERE(25) look like a sphere, instead of an ellipsoid.
    AXIS IMAGE  is the same as AXIS EQUAL except that the plot
       box fits tightly around the data.
    AXIS SQUARE  makes the current axis box square in size.
    AXIS NORMAL  restores the current axis box to full size and
        removes any restrictions on the scaling of the units.
        This undoes the effects of AXIS SQUARE and AXIS EQUAL.
    AXIS VIS3D  freezes aspect ratio properties to enable rotation of
        3-D objects and overrides stretch-to-fill.

    AXIS OFF  turns off all axis labeling, tick marks and background.
    AXIS ON  turns axis labeling, tick marks and background back on.

    AXIS(H,...) changes the axes handles listed in vector H.