.BG M
.VE $Header: /usr3/s/current/s/data/.help/RCS/barycentric,v 1.2 83/12/30 23:08:04 rab Exp $
.FN barycentric
.TL
?barycentric: Compute Barycentric Coordinates for Mixtures
.CS
?barycentric(a, b, c, x, y, size)
.PP
.AG a,b,c
vectors giving amounts of three components of mixture.
.AG x,y
vectors of coordinates at which each mixture should be
plotted.  x-coordinates range from 0 to 1, y-coordinates
from 0 to .866.  Plotting is typically done in a triangle
with vertices at (0,0), (1.0), and (.5,.866).
.AG size
vector giving relative size of each mixture, proportional to
square root of the total amount `a+b+c', scaled so that the
maximum value of `size' is 1.
.KW plot*
.KW dplot*
.WR
