Quadratic growth
Parameter
is constant of second difference, and parameter
is the value of x (1) when x (0) = 0
Functional shortcut:
Characteristics:
-
Add amount that grows linearly with
- The first differences are arithmetic growth or linear
- The second differences are constant
Try to experiment with the interactive program of Quadratic Growth Model below. Input the initial value x(0) and constant g and h then click "Find" button to find x(n) and to show the plot.
Quadratic Graph
-
The shape is
for positive
and
for negative
-
The graph crosses the
-axis at (0,
)
-
The graph is symmetry with vertical symmetrical line at
-
The highest or lowest point of the graph happens at
-
The value
is called discriminant. If the discriminant is negative, the graph has no
intercept (does not cross to
-axis). If the discriminant is zero or positive, the graph has
intercept at
See also: Dynamical System tutorial
Preferable reference for this tutorial is
Teknomo, Kardi (2015) Simple Growth Model. https:\\people.revoledu.com\kardi\ tutorial\Growth\