Douglas Schwarz

Philip, there is currently no way to invert the meaning of the filter to exclude items, but it could be done with a checkbox to indicate it. Let me see if I can fit it in somewhere.

For now, it seems like you could just filter on "new".

John,

Welcome to the fun of floating-point arithmetic. First, the duplicate points *are* removed, but this is not obvious unless you display all the digits of the result. For your third example, the four "duplicates" are actually all different, but only in the final bit (you can see it with "format hex"). I don't think there's anything I can do to make this work correctly in all cases.

Second, why should something fail if an intersection occurs at a segment boundary? Some people would like to consider this a proper intersection and others not (I know this from several discussions on the topic). As a user, you will have to evaluate the results you get for your particular application.

In many real world applications, where the two curves are formed from real data, this issue never comes up at all. It's (mostly) only from textbook type problems that you'll see this behavior.

Doug

Andrew,

No, they aren't supposed to be displayed. I realize that it's not ideal, but there are two problems with displaying them. (1) There's not enough room. Remember, we have to display both the list of files on the left and the chosen files on the right. To display additional information would simply make the figure too wide. (2) It would be difficult (maybe impossible) to get multiple columns to line up without using a monospaced font. A monospaced font would take up even more room and just exacerbate problem 1.

Those are my reasons, but I will think about your request and if I can come up with a way to do it without sacrificing appearance or functionality I'm not opposed.

Doug

Instead of filtering for a certain string contained within a folder title, is it possible to omit folders with this string from the list?

For example, I have a folder with 10 folders where 7 contain information I do not want and the string "old" in the title. I would like to show only the 3 folders containing "new" in the folder title.

Is there a way to construct the filter criteria to achieve this?