[no subject]

*To*: mathgroup at yoda.physics.unc.edu*From*: "R.C.McPhedran" <R.C.McPhedran at maths.bath.ac.uk>*Date*: Mon, 9 Nov 1992 11:24:17 GMT

I want to take numbers (x,y,fn.value(x,y)) generated by a Fortran program and read them into Mathematica and generate both surface plots and contour plots as a function of x and y, not of array subscripts (as ListPlot3D and ListContourPlot would give). I guess I have to use the standard Plot3D and ContourPlot. If this is so, I need to use the Interpolation command to make a 2D interpolating function which can be an argument (as shown in the Mma book, Second edition, pp.676-677). However, I can't get Interpolation to work with tables with data {x1,y1,f1}. The description on page 813 of Mma.2 is too brief to be helpful. Finally, I wonder whether anyone knows how to combine Plot3D results and contour plots in a natural way in Mma? Some graphics packages permit a contour plot to be shown below a 3D view, with the contour plot being rotated in the same way as the 3D box. I would appreciate any comments on how to solve my plotting and/or interpolation problems. Ross McPhedran (rcm at maths.bath.ac.uk).