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Difference between revisions of "AoPS Wiki:Article of the Day"

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AoPSWiki has an Article of the Day (AoTD) system, which recognizes the articles on the AoPSWiki which cover mathematical topics most comprehensively and accurately.
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AoPSWiki has an Article of the Day (AoTD) system, which recognizes the articles on the AoPS Wiki which cover mathematical topics most comprehensively and accurately.
  
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The AotDs are picked by the [[A:ADMIN|administrators]] of the AoPSWiki, but members can suggest AotDs by leaving a message on the talk page of either [[User talk:Azjps|azjps]] or [[User talk:Temperal|Temperal]].
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The AotDs are picked by the [[A:ADMIN|administrators]] of the AoPS Wiki, but members can suggest AotDs by leaving a message on the talk page of either [[User talk:Azjps|azjps]] or [[User talk:Temperal|Temperal]].
  
 
You can include the current AotD on your userpage with  
 
You can include the current AotD on your userpage with  
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==Current AotD==
 
==Current AotD==
 
The current AotD is:
 
The current AotD is:
  
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[[AoPS Wiki:Article of the Day/Archive|Past AotDs]]
 
[[AoPS Wiki:Article of the Day/Archive|Past AotDs]]
  
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[[Category:AoPS Wiki|Article of the Day]]

Revision as of 15:55, 1 June 2025

Shortcut:

AoPSWiki has an Article of the Day (AoTD) system, which recognizes the articles on the AoPS Wiki which cover mathematical topics most comprehensively and accurately.

The AotDs are picked by the administrators of the AoPS Wiki, but members can suggest AotDs by leaving a message on the talk page of either azjps or Temperal.

You can include the current AotD on your userpage with 

<dailyfeaturedpagetitle></dailyfeaturedpagetitle>

<dailyfeaturedpage></dailyfeaturedpage>

Current AotD

The current AotD is:

1983 AIME, Problem 13

For $\{1, 2, 3, \ldots, n\}$ and each of its non-empty subsets a unique alternating sum is defined as follows. Arrange the numbers in the subset in decreasing order and then, beginning with the largest, alternately add and subtract successive numbers. For example, the alternating sum for $\{1, 2, 3, 6,9\}$ is $9-6+3-2+1=5$ and for $\{5\}$ it is simply $5$. Find the sum of all such alternating sums for $n=7$.

Past AotDs

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