[WSG23] Daily Study Group: Wolfram Language Certification Prep

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Join Wolfram U instructors and a cohort of fellow learners in a Daily Study Group series to prepare for the Wolfram Language Level 1 Certification. We will review various topics that are included in the exam to test your proficiency in Wolfram Language programming.

Daily Study Group dates: Feb 13th-17th, 11am-12pm CT (5-6pm GMT)

REGISTER HERE

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Whether you are a new Wolfram Language user or an expert, join our study group, share your questions and feedback and, finally, take the exam to earn your certification.

Don’t forget to share your certificate on social media and tag us #WolframCertified

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Study Group begins Monday Feb 13. See you there!

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Hi Abrita,

Can you tell me how to join this discussion group, so that it appears under “My Groups”?

Cheers, Jörn

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Dear Arbita, I took a few Wolfram U classes and enjoyed them.
All classes included quizzes and, some of them, the additional sets of problems. Answering the questions, solving the problems, and attending the classes was always sufficient for receiving class certification. How is “Wolfram language certificated” different? How is it related to those certificates?
All the best.
Michael

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Where can I find the notebooks for the study sessions?

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I’m a student in the class, too. The Notebooks are in https://amoeba.wolfram.com/index.php/s/mTxiwj3JmLiLbFY . There are 4 folders – one for each day.

The prerecorded video presentations appear to come from “The Wolfram Language: Fast Introduction for Programmers”.

The links were announced in the video today, but they were not announced at the beginning of the presentation. I opened the Bigmarker recording link and skipped to about 80% of the way into the video. All of the links were then visible on the “chat” window of the replay. You open up chat in the replay by hitting the “chat replay” button near the lower right corner of the Bigmarker replay session.

HTH.

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Hi Jörn,
Once you have replied to a post, the thread should start appearing in the “My Discussions” section.

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Dear Michael,

“Wolfram Technology Certified Level I in Wolfram Language” is a certification offered by Wolfram Research to highlight the proficiency of the recipient in programming with the Wolfram Language.

This study group is intended to help you prepare for and then successfully take the Level 1 exam, that is required for this certification. We hope to discuss some topics that we feel may not have been sufficiently discussed in other study groups. We also plan to go through some sample questions representative of the questions you will find on the Level 1 exam.

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Hi Jörn,
You can also follow one of the groups this post belongs to, preferably Wolfram U group: -
https://community.wolfram.com/content?curTag=wolfram%20u

After opening the link above, follow the group by clicking the button “Join” near the group’s name

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Now you should see Wolfram U group in “My Groups” page, and this discussion will be mostly in the top of the first page of the group.

On top of that, you will get notified every time this group gets a new post.

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Open in Wolfram Cloud ↗
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I’m new to Wolfram Technologies, and I’d like to learn resources from “behind de scenes” related to the language. I see most of the presentations are focussed on “operation” of sets functions, but, is there any reference explaining the composing concepts and architectural elements of Wolfram Language?

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You might find these notes helpful:

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thanks Phil.

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Thanks for this! Explanations like this are always helpful to understanding.

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First of all, many thanks for the excellent lecture on ML. It and the interactive approach of Mathematica gave me a kickoff finally to start something practical on my own.

Unfortunately, it was no success. Can someone help me? The notebook is attached.

936239898.nb (839 KB)

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Hi, Arbita. I requested the exam but did not realize that it was a 1 week deadline. Can I use this one for practice, and then request a new version when time allows? Thanks. Michael

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Removing the error

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Hi Alex—there’s a link at the top of the chat panel every day called “Course Materials”. This should also be linked in the reminder emails that everybody registered for this study group should be getting.

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Hi Peter,
This should be a quick fix. You want to use single square brackets, not double. Double square brackets is reserved for the Part function.

Once you have trained your classifier cfun, you want to use it with single square brackets as follows:

cfun[{3,4,5}]

Also make sure you enclose the comment in the very first line of your notebook within (* *) as follows:

raw = Import["matest.csv", "Data"]  (* four columns of integers *)

The // is resrved for post-fix notation in Wolfram Language

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I caught a personal Wolfram Language misunderstanding just in time! i thought that RuleDelayed was typographically entered with “:->” (i.e., a colon, a dash, and a greater-then sign). It is not! The way to enter RuleDelayed is “:>”. I noticed because I was getting a nonsense error and I stopped getting it after fixing my typo (or maybe my thinko).

There were two ways I could have detected my error quicker. One was noticing the syntax highlighting in the Wolfram Notebook when entering the 3 characters. The second was the lack of an entry for “:->” in the help documentation. There is an entry for “:>”, but there isn’t one for “:->”. Aha! That should have been a clue. I’ll remember that in the future: if unclear what one of the shorthand combinations means, then type that literal combination into the help docs search bar.

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