Draw a 3D surface

*To*: mathgroup at smc.vnet.net*Subject*: [mg100680] Draw a 3D surface*From*: jl_03824 at yahoo.com*Date*: Wed, 10 Jun 2009 20:36:18 -0400 (EDT)

I intend to draw a 3D surface, which is defined in a tricky way. Given function f(x, y), the values of f are known but the range is determined by a function of y, g(y). I need to plot x as a function of y and f within the range determined by g(y). Can anybody help? Appreciate! Jun Lin