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I have a bitmap of a chart (in polar coordinates) that I would like to convert into a format that some plotting package can recognize, and then retrieve values from the chart at specific intervals. How do I do this? [more inside]

WordPressFilter: I'm looking for a plugin/widget/codesnippet that will allow me to create a graph using input from the user. [more inside]

I've been asked to teach a week at a summer university. Help me to design the most awesome computer science/discrete math course ever. [more inside]

I have a series of tables describing a set of data and their values for certain points in time. I want to create a multi-line chart from this data so I can see the growth curves. Is there a name for this kind of plot? It must be a solved problem and some tools to do this but I can't google for it if I don't know the name of what I want. [more inside]

Map geeks: can I generate a polygon shapefile from the outline of a large collection of points? There's more detail, of course. [more inside]

What is a good algorithm for generating smooth curves from discrete points? [more inside]

Graph theory seems hot right now. Don't know much about it, though. If one wanted to learn some of the most practical, useable, and interesting results from the field where would one turn? Bonus points for applicability in social sciences and/or web apps. And, tangentially, if one was potentially interested in focusing on graph theory and the social sciences, where would one look at grad school? [more inside]

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