Re: DSolve question

*To*: mathgroup at smc.vnet.net*Subject*: [mg88811] Re: DSolve question*From*: Bill Rowe <readnews at sbcglobal.net>*Date*: Sat, 17 May 2008 05:30:28 -0400 (EDT)

On 5/16/08 at 5:37 AM, igwood at yahoo.co.jp (igwood) wrote: >Below is the code that works. Clearly Mathematica recognizes output >in curly braces { } differently than that without. Did it seem surprising to you Mathematica sees things in curly braces differently that without them? If so, it shouldn't. Mathematica uses curly braces to denote a List. If no curly braces are present, then whatever expression you have is not a List. Since lists are different than say symbols, numbers, general expressions and other objects, Mathematica treats them differently as should be expected. If it truly was surprising to you output in curly braces was different than without curly braces you should review the material that can be found by selecting Help->Documentation Center then clicking on the second item (Lists) under Core Language paying particular attention to the information in the tutorials listed at the bottom of the page that comes up after clicking. Lists are a very fundamental construct in Mathematica. You will undoubtedly have difficulties getting Mathematica to perform as you want without having a fairly good grasp of lists.