Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2009

[Date Index] [Thread Index] [Author Index]

Search the Archive

help^please

  • To: mathgroup at smc.vnet.net
  • Subject: [mg97895] help^please
  • From: Fabrizio <Tekcitizen at hotmail.com>
  • Date: Wed, 25 Mar 2009 05:42:14 -0500 (EST)

There are 3 small problems.

1)Using the functions:

Position, ReplacePart, Take, Drop, Part, Rest, First and Last

I have to get { { 1 } , { 2 , 3 , 4 , 5 , 6 } } out of Range[ 6 ]


2) Using the functions:

Table, Random, Range

I have to get { {0} , { 0 , 2 } , { 0 , 2 , 4 } , { 0 , 2 , 4 , 6 } , { 0 , 2 , 4 , 6 , 8 } } in TWO ways.

---> I found for this second problem:

Table[ 2 * j - 2 , { i , 5 } , { j , i } ]

but another method using the same functions ?

3)using the functions as in problem 1:

Use the lists { a , b , c , d } and { 3 , 2 , 4 , 1 } to create the list { c , b , d , a } in one step.

complete moron


  • Prev by Date: Re: Recursive algorithm
  • Next by Date: Plot - Filling area that is above more curves
  • Previous by thread: Re: Unexpected behavior of Floor and IntegerPart
  • Next by thread: Re: help^please