||x-location of lower left corner of string in the
units of your plot. It is the radius in polar coordinates.
||y-location of lower left corner of string in the units of your
plot. It is the angle in polar coordinates.
||String to be plotted. Less than 80 characters in length.
||Character height in inches (or cm) on the full-page output.
||Angle at which the string is to be plotted. The angle is defined to
increase in the ounterclockwise direction and is measured in degrees from
the positive x axis. Any integer degree from -180
to +180 is allowed.