Input cells destroy Grids?

*To*: mathgroup at smc.vnet.net*Subject*: [mg124701] Input cells destroy Grids?*From*: Mark Green <p0073857 at brookes.ac.uk>*Date*: Wed, 1 Feb 2012 03:49:48 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Reply-to*: comp.soft-sys.math.mathematica at googlegroups.com

I'm trying to make a slide which will allow students to insert arbitrary numbers into a matrix multiplication, and have gotten this: incel = {1, 2, 3, 4}; matrix = {{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}}; Style[Grid[{{MatrixForm[incel, TableDirections -> Row], ""}, {InputField[MatrixForm[matrix]], MatrixForm[incel.matrix]}}], FontSize -> 40] It looks fine if I remove the InputField call, but with it in there, the input field takes up the entire width of the notebook, ignoring the fact there's supposed to be a grid cell to the right of it. Also, I have a feeling this won't work in FreeCDF because the input is of a matrix, not a number. Is there a better way of doing this that inputs only numbers and that fits in a grid?

**Follow-Ups**:**Re: Input cells destroy Grids?***From:*Heike Gramberg <heike.gramberg@gmail.com>