Editing Talk:1180: Virus Venn Diagram

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:Also, one of the most fascinating things from the Euler Wiki article was [http://en.wikipedia.org/wiki/File:Euler_diagram_of_triangle_types.svg this image] on a Euler diagram of traingles. --[[User:DanB|DanB]] ([[User talk:DanB|talk]]) 21:41, 1 March 2013 (UTC)
 
:Also, one of the most fascinating things from the Euler Wiki article was [http://en.wikipedia.org/wiki/File:Euler_diagram_of_triangle_types.svg this image] on a Euler diagram of traingles. --[[User:DanB|DanB]] ([[User talk:DanB|talk]]) 21:41, 1 March 2013 (UTC)
 
:Actually, this IS a Venn Diagram, not an Euler diagram.  In an Euler diagram, one thins is a subset of another, which in this case would suggest that either all suspected cases of computer viruses are a subset of actual computer viruses, or the reverse, which I really don't think Randall is trying to imply, or rather NOT imply by his joke.  For one thing, the joke is that problems that are caused by computer viruses and problems that people suspect are caused by computer viruses should have some overlap, but don't.  This does not fit with an Euler interpretation of the graph as that would say (if one of the circles was inside the other) that every time the problem is a computer virus, people always correctly identify them but also assume other non-computer virus problems are viruses - or the reverse - all problems are caused by a computer virus but only a few are identified as computer viruses. Secondly, and more importantly, in an Euler diagram one circle is always SMALLER than the other, where as in a Venn diagram they are always the SAME size.  Oh, and last but not least, I'd be very surprised if Randall didn't know the difference between a Venn and an Euler diagram, since I'm sure he's had to use both many times.--[[User:7OO Tnega Terces|7OO Tnega Terces]] ([[User talk:7OO Tnega Terces|talk]]) 07:43, 3 March 2013 (UTC)
 
:Actually, this IS a Venn Diagram, not an Euler diagram.  In an Euler diagram, one thins is a subset of another, which in this case would suggest that either all suspected cases of computer viruses are a subset of actual computer viruses, or the reverse, which I really don't think Randall is trying to imply, or rather NOT imply by his joke.  For one thing, the joke is that problems that are caused by computer viruses and problems that people suspect are caused by computer viruses should have some overlap, but don't.  This does not fit with an Euler interpretation of the graph as that would say (if one of the circles was inside the other) that every time the problem is a computer virus, people always correctly identify them but also assume other non-computer virus problems are viruses - or the reverse - all problems are caused by a computer virus but only a few are identified as computer viruses. Secondly, and more importantly, in an Euler diagram one circle is always SMALLER than the other, where as in a Venn diagram they are always the SAME size.  Oh, and last but not least, I'd be very surprised if Randall didn't know the difference between a Venn and an Euler diagram, since I'm sure he's had to use both many times.--[[User:7OO Tnega Terces|7OO Tnega Terces]] ([[User talk:7OO Tnega Terces|talk]]) 07:43, 3 March 2013 (UTC)
βˆ’
::I'm citing Wikipedia: "Euler diagrams consist of simple closed curves (usually circles) in the plane that depict sets. The sizes or shapes of the curves are not important: the significance of the diagram is in how they overlap." I didn't know about this before, but I learned it because of DanB's cunning. No one knows everything, not even Mr. Munroe, and I'm sure you can use both kinds of diagrams many times without knowing their definitions. [http://en.wikipedia.org/wiki/File:Euler-venn-example.png Diagram.] –[[User:St.nerol|St.nerol]] ([[User talk:St.nerol|talk]]) 18:07, 3 March 2013 (UTC)
 
  
 
:I was about to make a post about unnecessary amounts of pedantry, but after reading both wikipedia articles, I've decided that this is exactly the kind of "Learn something new every day" material that I really liked about the old explain xkcd blog, and I'm happy that its continuing. [[User:Lcarsos|lcarsos]]<span title="I'm an admin. I can help.">_a</span> ([[User talk:Lcarsos|talk]]) 06:32, 2 March 2013 (UTC)
 
:I was about to make a post about unnecessary amounts of pedantry, but after reading both wikipedia articles, I've decided that this is exactly the kind of "Learn something new every day" material that I really liked about the old explain xkcd blog, and I'm happy that its continuing. [[User:Lcarsos|lcarsos]]<span title="I'm an admin. I can help.">_a</span> ([[User talk:Lcarsos|talk]]) 06:32, 2 March 2013 (UTC)

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