Re: Getting rid of those deprecated Doloops?

*To*: mathgroup at smc.vnet.net*Subject*: [mg92782] Re: Getting rid of those deprecated Doloops?*From*: Bill Rowe <readnews at sbcglobal.net>*Date*: Mon, 13 Oct 2008 06:18:34 -0400 (EDT)

On 10/12/08 at 4:35 AM, siegman at stanford.edu (AES) wrote: >Trying to think of a "two-variable iterator" approach that will let >one produce the same results as >data = { }; Do[ >Do[ data = AppendTo[data, {aa, bb, xx, yy}], {bb, 10, 30, 10}], {aa, >1, 2}]; Print[data // TableForm]; >without using those universally deprecated (and even worse, nested) >Do[ ] loops, not to mention the equally deprecated AppendTo[]. The following gives the same result: In[1]:= {Ceiling[#/3], 10 Mod[#, 3, 1], xx, yy} & /@ Range[6] Out[1]= {{1, 10, xx, yy}, {1, 20, xx, yy}, {1, 30, xx, yy}, {2, 10, xx, yy}, {2, 20, xx, yy}, {2, 30, xx, yy}}