franke - Franke's bivariate test function
Syntax
z = franke(x,y)
Description
z = franke(x,y) returns
the value z(i) of Franke's function at the site
(x(i),y(i)), i=1:numel(x),
with z of the same size as x and y (which
must be of the same size).
Franke's function is the following weighted sum of four exponentials:
Examples
The following commands provide a plot of Franke's function:
pts = (0:50)/50; [x,y] = ndgrid(pts,pts); z = franke(x,y);
surf(x,y,z), view(145,-2), set(gca,'Fontsize',16)
References
[1] Richard Franke. "A critical comparison
of some methods for interpolation of scattered data." Naval
Postgraduate School Tech.Rep. NPS-53-79-003, March 1979.
 | fnzeros | | getcurve |  |
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