Plotting two surfaces

*Subject*: Plotting two surfaces*From*: uunet!ARIES.ATMOS.COLOSTATE.EDU!PIOTR.FLATAU*Date*: 10 Mar 1990 23:46:30 EST*Apparently-to*: mathgroup-send at yoda.ncsa.uiuc.edu

I wonder if it is possible to overlap two surfaces in Mathematica (on one plot). Something like, say: a:= 2x+y b:=x+y pl1:= Plot3D[a, {x,0,1}, {y,0,1}] pl2:= Plot3D[b, {x,0,1}, {y,0,1}] Show[pl1,pl2] -----------------------------> doesn't work or Plot3D[{a,b}, {x, 0,1}, {y,0,1}] ------> doesn't work I read the first 5 archives but nothing there except, possibly, Ken Yip's question ? Peter flatau at handel.cs.colostate.edu