Re: 3DPlot in Mathematica 6

*To*: mathgroup at smc.vnet.net*Subject*: [mg80344] Re: [mg80312] 3DPlot in Mathematica 6*From*: Curtis Osterhoudt <cfo at lanl.gov>*Date*: Sat, 18 Aug 2007 05:34:49 -0400 (EDT)*Organization*: LANL*References*: <200708170550.BAA00254@smc.vnet.net>*Reply-to*: cfo at lanl.gov

On Thursday 16 August 2007 23:50:41 Dr. Van Nostrandt wrote: > Hi, > I use Mathematica 6 on a PC (Intel Celeron CPU 2.6 GHz, 256 RAM) under > Ubuntu 7.04. When I run the command Plot3D[f,options] it doesn't display me > the function graph if f has a complicated form. If f it's enough simple, > the function is displayed. For example the command > Plot3D[Sin[x+Sin[y]],{x,-10,10},{y,-10,10}] shows me the graph, but already > for Plot3D[2 [Sin[x+Sin[y]]],{x,-10,10},{y,-10,10}] I can't see it, just > the 3D box, where should be the graph. Does anyone know the reason? > Thank You in advance! Check your syntax. :) "2" is not a function, yet the way the function is typed---with the square brackets to imply multiplication---makes Mathematica think that "2" should take the argument of Sin[x+Sin[y]]. Try Plot3D[2*Sin[x + Sin[y]], {x, -10, 10}, {y, -10, 10}] instead, or Plot3D[2(Sin[x + Sin[y]]), {x, -10, 10}, {y, -10, 10}] or Plot3D[2 Sin[x + Sin[y]], {x, -10, 10}, {y, -10, 10}] . Hope that helps! -- ========================================================== Curtis Osterhoudt cfo at remove_this.lanl.and_this.gov PGP Key ID: 0x4DCA2A10 Please avoid sending me Word or PowerPoint attachments See http://www.gnu.org/philosophy/no-word-attachments.html ==========================================================

**References**:**3DPlot in Mathematica 6***From:*"Dr. Van Nostrandt" <dr.vannostrandt@yahoo.com>