Dnia Sat, 11 Jun 2011 15:05:52 -0500, Barton Willis napisa?(a):
Thx for answer.
It works. Looks good,
but I think that white area in the middle of image should be smaller
( thinner).
I have also tried :
plot3d (f(x,y), [x, -4, 4], [y, -4, 4],
[mesh_lines_color, true],
[colorbox, true], [grid, 150, 150])$
But it gives a flat plane
To big grid value gives error :
(%i4) contour_plot (f(x,y), [x, -4, 4], [y, -4, 4],[adapt_depth, 10],
[grid,1000,1000])$
Maxima encountered a Lisp error:
The value 65000 is not of type (MOD 65000).
Automatically continuing.
To enable the Lisp debugger set *debugger-hook* to nil.
Best regards
Adam