Re: Problem with a plot in Mathematica

*To*: mathgroup at smc.vnet.net*Subject*: [mg100474] Re: [mg100443] Problem with a plot in Mathematica*From*: Bob Hanlon <hanlonr at cox.net>*Date*: Fri, 5 Jun 2009 03:01:42 -0400 (EDT)*Reply-to*: hanlonr at cox.net

C is reserved. Use a lower case c exp( _ ) should be Exp[ _ ] c[y_, vary_, varz_] = (25/2*3.14*7*vary*varz)*Exp[-y^2/2*vary^2]* Exp[-38^2/2*varz^2]; vary[x_] = 0.22*(1 + 0.0004 x) - 0.5; varz[x_] = 0.20*(1 + 0.0001 x) - 0.5; Plot3D[c[y, vary[x], varz[x]], {x, 0, 10}, {y, 0, 5}] Bob Hanlon ---- dmirab <donatomirabile at hotmail.com> wrote: ============= Hi there I have a function to plot in Mathematica but i am keeping getting some mistake of sintax. this is the function: C=(25/2*3.14*7*vary*varz)*exp(-y^2/2*vary^2)*exp(-38^2/2*varz^2) and vary=0.22*(1+0.0004x)-0.5 varz=0.20*(1+0.0001x)-0.5 it shoud be a 3d but i put z=38 so it's a 2D now. How do you type it in Mathematica? Just to get what's my mistake any help is very much appreciated thanks very much