In the general case of a multicomponent material, an indicator function [[lambda].sub.C]([??]) takes the value 1 if the radius vector
is in component C and is equal to 0 in all other cases.
The estimation of the spatial position of the radius vector
shows the balance of system that represent the level of sustainable development.
with [epsilon] the mean obliquity of the ecliptic as defined in ; [r.sup.e.sub.S] is radius vector
of Sunmass center in Ecliptic Earth Centered Inertial Frame of J2000.0 defined as
In fact, for any method of compensation where a probe radius vector
is added to the coordinates of the probe center, the apparent point of contact cannot lie within the physical material and consequently compensation errors will always result in underestimating an internal diameter or overestimating an external diameter.
Note that in this paper the prototype shape is described by the thickness of the body measured orthogonally to the symmetry axis and not by the radius vector
function as in Streit (1997; 2000; 2003; 2005; 2006).
The efficient technique of the approximation of star contours of sources by a radius vector
which is set by the truncated trigonometric series has been used for cylindrical bodies with polygonal sections (Bulach & Mikheeva 1993)
(He makes the analogy with light, whose illuminating power decreases with distance.) First assuming that the orbits are eccentric circles (as did Ptolemy), he formulated his second law (chronologically the first) The radius vector
of the orbit sweeps out equal areas in equal times.
The position of the earth at any time is specified by the angle [alpha] of the radius vector
from sun to earth, which we will measure counterclockwise from the Spring equinox, with -180[degrees] < [alpha] [less than or equal to] 180[degrees] as in Figure 1.
Here Kepler set forth his first two laws of celestial motion: the planetary orbit is an ellipse with the sun as one of the loci; and the radius vector
drawn from the sun describes equal areas in equal times.