Export

*To*: mathgroup at smc.vnet.net*Subject*: [mg128105] Export*From*: Adel Elsabbagh <aelsabbagh at gmail.com>*Date*: Sun, 16 Sep 2012 03:23:34 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Delivered-to*: l-mathgroup@wolfram.com*Delivered-to*: mathgroup-newout@smc.vnet.net*Delivered-to*: mathgroup-newsend@smc.vnet.net

Dear friends, I am trying to export a 30*30 matrix (M) with entries function in x and y to a txt file in order to use it by another program. I am using: Export["filename.txt",M]. I have two problems: 1. I want to reduce the precision of the coefficients of x & y. When I use N[M,n] or SetPrecision[M,n], the precision is reduced within the Notebook but not in the exported file. How to reduce the precision in the exported file? 2. Some entries look like "5*x + 3*y", which leaves spaces around the plus or minus signs. Is there a way to tell Mathematica not leave these spaces because the other program assumes that this is a new column? I also tried to write M//InputForm and just copy and past it, but I get a lot of expressions such as 1.935*^-6 which the other software cannot understand. Is there a way to write it in the form: 1.935e-6? Thanks in advance -- Adel Elsabbagh ASU Sound & Vibration Lab Faculty of Engineering - Ain Shams University Cairo, Egypt 11517 Tel: +202 26828114 http://www.asugards.net/

**Follow-Ups**:**Re: Export***From:*christopher arthur <chris.arthur1@gmail.com>