Draw – Can a ListPlot be drawn with a line around the "point cloud" with Mathematica?

Can Mathematica be used to create a ListPlot with the function shown below? a line around the point cloud?

I am not quite sure which rule would produce the desired effect (ie which points actually make up the red border), but I think the line should be drawn so that no point is "out of line". On the other hand, that leaves a lot of room.

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dnd 5e – Is the map of Kolat towers drawn correctly?

In Waterdeep: Dragon Heist, players can access a zone known as Kolat Towers. The map, however, is strangely drawn.

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It seems that the 2nd floor is not aligned with the 1st floor. I'm building the map in 3D for my Halloween session later this week and I'm not sure if I should build something like that

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Or if I should redraw the map so that the walls and stairs are aligned.

Is this map drawn correctly and the walls are not aligned (so I just have to reconfigure some stairs slightly), or did the designers only screw halfway through the floors, and it would be better to recreate the map?

legal – Where is the line drawn with domain names that contain a trademark?

I am not a lawyer and that is NOT LEGAL ADVICE!

To update

I read an article about Blogger Law and came across this direct problem. Here's an example case they quoted:

A leading case in the area of ‚Äč‚Äčtrademark litigation is Continental Airlines, Inc. against continentalairlines.com. In this case, the dotcom simply redirected visitors to a travel site where they could buy Continental Airline tickets and pay an additional $ 15 to use the service. The court awarded the airline's domain due to a trademark infringement.

I strongly recommend reading # 5 on this page as this is an excellent answer to this question.

Original answer

I would say no. You will not get permission from Google and the likelihood of confusion is high.

Here is an example:

In 1988, Quality Inns was planning to open a new chain of economy hotels 
under the name "McSleep." After McDonald's demanded that Quality Inns not 
use the name because it infringed, the hotel company filed a suit in federal 
court seeking a declaratory judgment that "McSleep" did not infringe. 
McDonald's counterclaimed, alleging trademark infringement and unfair 
competition. Eventually, McDonald's prevailed. The court's opinion noted that
the prefix "Mc" added to a generic word has acquired secondary meaning, 
so that in the eyes of the public it means McDonalds, and therefore the name
"McSleep" would infringe on McDonald's trademarks.


You can accept the same for YouTube as people would think it would be for a YouTube-sponsored or YouTube-sponsored branch.

It's not always about money that matters when a user confuses your domain with the Youtube domain and the answer is most likely yes.

A good book on copyright is intellectual property: patents, trademarks and copyrights by Richard Stim. Published by West Legal Studies. This book provides you with a good foundation and is used in law schools and you can understand it.

The best bet would be to name something generic against a mark.

Where is the line between good and bad ethics drawn?


So I have a question about the prices quoted and how to keep those prices.

I sign in to my Amazon Store account. I find the product I want to buy. It's called $ 10. I'll go to the cashier and if I have to pay, there's now $ 6, so I'll pay anyway, because the hell it's cheaper. Now the supplier has shipped the product and it's on its way, but now the extra $ 4 will be deducted from my credit card because it has been determined that the system is faulty.

If I register as a customer with a digital service provider and the price quoted on the website is $ 10 per month, and you checkout, you see that the recurring fee is now only $ 6 per month and you expect "Oh, that's cool, you must have lowered your price and not updated your website." So sign up and pay. Everything is set up and activated and you are on the way to use the service.

The next day you will receive an email with the message "We have lowered your recurring fee to $ 10, as it will be charged at the price quoted."

My questions are simple:

1. Is this ethical? Sure, I was willing to accept the $ 10 when I clicked on "sign up," but for me, this is a violation of ethics if they just change the price without notifying me, and their system It enabled me to purchase a recurring service for $ 6.
2. Is this legal at all, if the system allows a certain price and the customer continues with the price that goes into the agreement?
3. How should a person react to it and deal with it?

I'm just curious what everyone else thinks.

Thank you very much

discrete geometry – how many small points can be drawn in an area where no three are "collinear"?

When people draw dots on paper, these are actually not dots, but small areas that are filled with ink. Suppose each point has a fixed radius disk shape $ r << 1 $ and must be drawn within (1) a square area with side length $ 1 $; (2) a circular area with radius $ 1 $, How many points can be drawn so that no three are collinear? Three points are collinear if one of them intersects with the strip determined by the other two at more than one point. (I think it's equivalent to: There's a line that cuts all points at more than one point.)

Comment. I have been working on an Olympic problem that requires it $ 100 Points in a circle without three being collinear. With normal pen and paper, it is a very difficult task. So I came up with this problem and hopefully someone has previously encountered similar problems or can provide an algorithm to estimate the limit when $ r $ is small.

parallels desktop – No window can be drawn in Catalina Beta

I'm using macOS Catalina 10.15 beta in a virtual machine running Parallels Desktop for Mac version 15.0.0.

I installed the beta on Mojave, which worked well within the VM. Unfortunately, after installing Catalina Beta, I can not pull windows anymore.

When I click and drag the title bar of a window, the window moves a few pixels and stops. If I repeat it, I can barely make any progress by gradually shifting the window a few pixels at a time. Obviously, it's not practical to move some pixels at once, which makes Catalina Beta unusable.

This issue affects windows in all apps: the Finder, the About This Mac window, the Feedback Wizard, and so on.

Any workarounds or fixes?

Percent calculator with drawn overlay in C #

I would like to create a program that calculates the percentage of a selected screen size. For example, I want the user to be able to draw a box about anything he wants (possibly using an overlay?), Such as a camera image, and then type in what percentage of the screen size you want to see. So, if you enter 20%, a line or field is drawn vertically that is 20% of the currently drawn field vertically. This line would only have to be movable within the drawn box.

I would like to do this in C #, preferably with a small GUI for the user to enter a percentage. I am not looking for a complete solution to this problem. It is a learning project for me. I just want to give some guidance on where to look for resources and what to do to get a good start.

I have not made a small painting as a small guideline not the best work of art, but should give a hint.

View post on imgur.com

Many thanks


Touchscreen – How do you undo drawn lines in Windows 8 Sticky Notes?

For example, Windows 8 sticky notes have a touch screen feature. If you use a touch screen, you can draw things in a note window. I never use this feature, but it often happened to me that I accidentally pulled something in. However, there is no (obvious) way to REMOVE or undo the drawings – Ctrl + Z only affects the text, the context menu does not show anything, the drawings do not affect the written text. The only option I've found so far is Ctrl + A, create a new sticky, copy it and delete the old one. Bad design or did I miss something?