Table 18.2 (continued)
Cat Example
Description
DD
Sharp/cusp/asymptote graph, where the
graph is always concave (reverse power
type). Maximum:
cusp. Within this category also right arm,
graphs with the only
branch of the right
DE
Straight-line graph,
descending line that
intersects the axes in
both positive values.
Within this category
also graphs with only
the right branch
Fig. 18.1 I vs x distribution of a DB
0 cat, including discontinuity in light intensity distribution
230
A. Stefanel