RE: Mathematica Plot [help]
- To: mathgroup@smc.vnet.net
- Subject: [mg10335] RE: [mg10312] Mathematica Plot [help]
- From: "Richard W. Finley, M. D." <trfin@umsmed.edu>
- Date: Thu, 8 Jan 1998 23:40:57 -0500
Hi
One easy way to do it:
f[x_,y_] := Sin[x y] /; y <= 1 - x
f[x_,y_] := 0 /; y > 1 - x
Plot3D[f[x,y],{x,0,1},{y,0,1}]
Regards,
RF
-----Original Message-----
From: Wei Xu [SMTP:wxu@cs.utexas.edu] To: mathgroup@smc.vnet.net
Sent: Monday, January 05, 1998 9:25 PM To: mathgroup@smc.vnet.net
Subject: [mg10312] Mathematica Plot [help]
Hi,
I'm learning Mathematica.
I want to draw a surface, say sin[x,y], defined on a triangular domain,
say, x:[0,1], y:[0,1] and x+y <=1.
I tried to use the following command:
ParametricPlot3D[{fx, fy, fz}, {x,0,1}, {y,0,1-x}] but it is not
allowed to use {y,0,1-x}.
Anybody can help me out?
Thanks,
Regards,
Wei