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One day, I found myself curious about different topics in mathematics. So, I stumbled uppon a website (considerably old website) where author has tabularized mathematics into subjects and associated topics.

Based on the information taken from the website, I decided to make a Graph to see how do different subjects and topics relate.

I managed to load the data:

web = Import["http://www.math-prof.com/", "Data"];

and retrieve the data:

rawData = web[[2]][[2 ;; All]];

From the above raw set of data, I have retrieved all subjects:

subjects = If[(Length @ #) > 1, List @ First @ #, List @ #] &  [First @  rawData [[#]]] & /@ Range @ ((Length @ rawData) - 1); (*-1 because I wasn't interested in Physics bit*)

The topics were a bit more troublesome so some manual work has been carried out to clean-up the dataset

From the above set of files, I carried out an Import:

topics = Import[ "t" <> ToString @ # <> ".txt", "List"] & /@ Range @ 12;

Finally, creating a graph:

Graph[Flatten @ Table[Rule[subjects[[i]] // First , #] & /@ topics[[i]], {i, Length @ subjects}], VertexLabels -> "Name", EdgeShapeFunction -> "Line"]

Here is the output:

output

I was wondering how I could make this Graph more readable? As you see, the Text is practically unreadable.

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    $\begingroup$ Why not have the subjects be Tooltip[]s instead? $\endgroup$ – J. M. will be back soon Mar 24 '16 at 17:03
  • $\begingroup$ I will try and implement that just now, thanks for the suggestion @J.M $\endgroup$ – e.doroskevic Mar 24 '16 at 17:10
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    $\begingroup$ Try some of the zooming techniques detailed here 104718. $\endgroup$ – Edmund Mar 24 '16 at 17:14
  • $\begingroup$ Thanks @Edmund, that looks pretty awesome $\endgroup$ – e.doroskevic Mar 24 '16 at 17:27

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