This class is fun. It ranges from beginning basics to intermediate concepts, and the activities/projects leave plenty of room for creative expansion.

I am sharing my own solution to the first three projects. I stick mostly within the prescribed parameters and then push each project just a little beyond. These links take you to a cloud version of my solutions, where they do work, but I recommend downloading them to run on your desktop. That's especially true for Project 3 which takes a long time to render on the cloud (like 2 minutes).

Project 1

Project 2

Project 3

Hi, Mark. FWIW, problem 1 in Quiz 5 looks correct to me. One and only one of the statements is incorrect, and the scoring-bot agreed with me. You can e-mail me the specifics of what you think is incorrect.

OTOH, Problem 7 in Quiz 5 appears to be incorrect. I ran the code in the scratch window and I did not see the expected behavior. After getting it scored wrong, I guessed the correct answer. The code still didn't run correctly in the scratch notebook. [Being deliberately vague to avoid spoilers.]

Problem 11 on Quiz 5 is a really good question! It required thinking. I wish more questions like this were like this on the quizzes.

On Problem 4 on Quiz 5, I got the right answer. However, when I tried to run that code, one of the cases would not run correctly. I'd appreciate if @Rory || @Eryn would see if they see the same thing running manually. [Being deliberately vague to avoid spoilers. DM me if you need to see what I'm seeing.]

It appears to me that the first question in Quiz 5 scores incorrectly.

Greetings! Thanks for pointing this out - these quiz questions and some others have been updated!

The link to the framework was shown in the Chat area of the BigMarker session. Wolfram doesn't announce the link in the public community discussion because they only want students enrolled in this course to be going through the exercises and quizzes right now. Unfortunately, some might not realize that they need to stash away that URL during the class session.

@Alex, the link was at the top of the chat window with a light blue background. I went through two whole sessions of an earlier course and could never see it; the instructor had to highlight the area of the screen for me to find it. This was somewhat of a "see a tree in the forest" thing; I felt pretty silly. The blue background is intended to emphasize the link. Unfortunately -- for some of us -- the blue background makes the link less readable. I have some difficulty seeing characters crisply on a display and I don't have an eyeglass prescription to help with seeing small text clearly. I'm not sure if these young whippersnappers know what we're up against sometimes. Grumble. :)

I do wish they would put the link in the non-blue area. Or maybe -- gasp -- put the link twice in the Chat window: once in the blue area and once right below it.

Quiz 2, Question 4 seems okay to me.

CORRECTION: Now that I've gotten my score for Quiz 2, I agree that there is a problem with Question #4.

Hi, Alex. This link was in the Chat part of yesterday's webinar.

I think that's what is meant by "framework". There you can watch the videos and recordings, read materials and take quizzes.

Hope this helps,

Mark

Some tips I remembered tonight:

One cool detail of the Wolfram Language & System Documentation Center is searching on a shortcut. If you put a shortcut into the search box (e.g., //, #, &, /@, etc.) you will go to a page documenting both the shortcut and non-shortcut forms of the shortcut.

Doing the non-shortcut form -- invoking the function with no shortcuts -- is essential to mastering the shortcut. I like saying the full name of a shortcut to myself whenever using one.

The documentation can be brought up as a window in the Mathematica App, or it can be found on the web at https://reference.wolfram.com/language/ . At different times, one way or the other will be better for consulting the docs.

When using the framework, there are times when it's easier to have one of the framework windows in its own tab. On the Mac, you can right-click in a window and select "Open Frame in New Tab". I'm guessing there is a similar way to do this on Windows and Linux.

NotebookDelete[Cells[]] will erase everything in the scratch notebook.