Re: Strange Elements in Table

*To*: mathgroup at smc.vnet.net*Subject*: [mg60464] Re: Strange Elements in Table*From*: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>*Date*: Sat, 17 Sep 2005 02:31:46 -0400 (EDT)*Organization*: The Open University, Milton Keynes, U.K.*References*: <dgdu8l$15f$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

kristoph wrote: > I use a couple IF's which specify the elements in a 2x10 table. When I > look at the table after calculation, I get a 2x11 table. Why??? All the > needed results are in the first 10 columns, the 11th states the If > commands. > Any idea how to get rid of the last column? Thanks for help > It is difficult to pinpoint your mistake without the actual code; however, I hope that the following line will help you to understand how to fix the weird result you got. Say we want all the entries of a 2x10 matrix being equal to the product of their indices except when the indices are equal: In[1]:= Table[If[i == j, 0, i*j], {i, 1, 2}, {j, 1, 10}] Out[1]= {{0, 2, 3, 4, 5, 6, 7, 8, 9, 10}, {2, 0, 6, 8, 10, 12, 14, 16, 18, 20}} Hope this helps, /J.M.