Difference between revisions of "Sort Command"

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; Sort[ <Values>, <Keys> ]: Sorts the first list ''Values'' according to the corresponding second list ''Keys''.
 
; Sort[ <Values>, <Keys> ]: Sorts the first list ''Values'' according to the corresponding second list ''Keys''.
 
:{{Example|1=If you want to sort a list of polynomials <code>list1 = {x^3, x^2, x^6}</code>  according to degree, create the dependent list of degrees <code>list2 = Zip[Degree[a], a, list1]</code>. After that, <code> Sort[list1, list2]</code> yields the requested ''list3 = {x^2, x^3, x^6}''}}
 
:{{Example|1=If you want to sort a list of polynomials <code>list1 = {x^3, x^2, x^6}</code>  according to degree, create the dependent list of degrees <code>list2 = Zip[Degree[a], a, list1]</code>. After that, <code> Sort[list1, list2]</code> yields the requested ''list3 = {x^2, x^3, x^6}''}}
:{{Example|1=<code>list1 = {ComplexRoot[x^10-1]}</code>,  <code>Polygon[Sort[list1, arg(list1)]] </code>}}
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:{{Example|1=If you want to draw the polygon having as vertices the complex roots of <math>x^{10}-1</math>, sorted by their arguments, create <code>list1 = {ComplexRoot[x^10-1]}</code>,  then use the command <code>Polygon[Sort[list1, arg(list1)]] </code>}}
 
}}
 
}}
 
{{note|There is a workaround to sort lists of arbitrary objects which is explained in the [[Tutorial:Advanced List Sorting]].}}
 
{{note|There is a workaround to sort lists of arbitrary objects which is explained in the [[Tutorial:Advanced List Sorting]].}}

Revision as of 10:35, 18 August 2012


Sort[List]
Sorts a list of numbers, text objects, or points.
Note: Lists of points are sorted by x-coordinates.
Example:
  • Sort[{3, 2, 1}] gives you the list {1, 2, 3}.
  • Sort[{"pears", "apples", "figs"}] gives you the list elements in alphabetical order.
  • Sort[{(3, 2), (2, 5), (4, 1)}] gives you {(2, 5), (3, 2), (4, 1)}.
Note: There is a workaround to sort lists of arbitrary objects which is explained in the Tutorial:Advanced List Sorting.
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