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Groups > comp.soft-sys.math.mathematica > #1872

Short-cut for reiteration, via postfix usage of Table as pure

From "Christopher O. Young" <cy56@comcast.net>
Newsgroups comp.soft-sys.math.mathematica
Subject Short-cut for reiteration, via postfix usage of Table as pure
Date 2011-04-25 11:27 +0000
Organization Steven M. Christensen and Associates, Inc and MathTensor, Inc.
Message-ID <ip3lrg$r6p$1@smc.vnet.net> (permalink)
References <iorih5$o6t$1@smc.vnet.net> <ip14qm$ged$1@smc.vnet.net>

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I get a little tired of the excess typing involved with using Table for
simple reiteration of functions with a parameter list. Since Mathematica
doesn't seem to use "T" for anything, it's handy to just re-define this to
mean Table. Then use a postfix call with a "#" as a slot for the argument
and an ampersand "&" at the end to indicate a pure function. See
ref/Function in the Mathematica Help for details.


T = Table;



Graphics[
 Line[{{0, 10 - k}, {k, 0}}] // T[#, {k, 0, 9}] &
 ]

>> I have the following bit of graphics:
>> 
>>    Graphics[{
>>   Line[{{0, 10}, {1, 0}}],
>>   Line[{{0, 9}, {2, 0}}],
>>   Line[{{0, 8}, {3, 0}}],
>>   Line[{{0, 7}, {4, 0}}],
>>   Line[{{0, 6}, {5, 0}}],
>>   Line[{{0, 5}, {6, 0}}],
>>   Line[{{0, 4}, {7, 0}}],
>>   Line[{{0, 3}, {8, 0}}],
>>   Line[{{0, 2}, {9, 0}}],
>>   Line[{{0, 1}, {10, 0}}],
>>   }]
>> 
>> 
>> I want to simplify it to do some sort of iteration to compute the end points
>> of the lines. I can do this easily in a variety of procedural languages but
>> I haven't yet grokked how Mathematica would do this.

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Thread

How to roll up multiple Line calls into a loop Sol Lederman <sol.lederman@gmail.com> - 2011-04-22 09:41 +0000
  Re: How to roll up multiple Line calls into a loop Dan <dflatin@rcn.com> - 2011-04-23 11:50 +0000
    Re: How to roll up multiple Line calls into a loop "Christopher O. Young" <cy56@comcast.net> - 2011-04-25 11:29 +0000
  Re: How to roll up multiple Line calls into a loop Albert Retey <awnl@gmx-topmail.de> - 2011-04-23 11:51 +0000
  Re: How to roll up multiple Line calls into a loop "Christopher O. Young" <cy56@comcast.net> - 2011-04-23 11:51 +0000
  Re: How to roll up multiple Line calls into a loop Helen Read <readhpr@gmail.com> - 2011-04-23 11:51 +0000
  Re: How to roll up multiple Line calls into a loop Peter Pein <petsie@dordos.net> - 2011-04-23 11:52 +0000
  Re: How to roll up multiple Line calls into a loop roby <roby.nowak@gmail.com> - 2011-04-23 11:52 +0000
  Re: How to roll up multiple Line calls into a loop Yves Klett <yves.klett@googlemail.com> - 2011-04-24 12:24 +0000
    Short-cut for reiteration, via postfix usage of Table as pure "Christopher O. Young" <cy56@comcast.net> - 2011-04-25 11:27 +0000
    Short-cut for reiteration, via postfix usage of Table as pure "Christopher O. Young" <cy56@comcast.net> - 2011-04-25 11:27 +0000
      Re: Short-cut for reiteration, via postfix usage of Table as pure Peter Pein <petsie@dordos.net> - 2011-04-26 10:51 +0000
      Re: Short-cut for reiteration, via postfix usage of Table as pure Peter Pein <petsie@dordos.net> - 2011-04-26 10:50 +0000
        Re: Short-cut for reiteration. Concise, readable symbols and "Christopher O. Young" <cy56@comcast.net> - 2011-04-27 09:38 +0000

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