Need help w- simple program

*To*: mathgroup at smc.vnet.net*Subject*: [mg115138] Need help w- simple program*From*: "xscribe at gmail.com" <xscribe at gmail.com>*Date*: Sun, 2 Jan 2011 04:55:13 -0500 (EST)

i purchased a copy of home edition. As my first programming project, I'd like to simulate a lambertian (e.g. Intensity is a function of cos theta) led light source and plot the light intensity impinging on a surface 12" away. I'd like to plot the surface as 1024x1024 points with different colors for ranges of intensities. I know this is pretty simple with Mathematica, unfortunately I have no experience with Mathematica and don't know where to begin. Help! Thanks, Per