4

Could you tell me what you want to do with “4”? I’m not sure what problem or topic you have in mind.

Here are a few options I can do right away:

• Create a 4-question mini-quiz on a topic (e.g., calculus, linear algebra, statistics, CS) at beginner/intermediate/advanced level.
• Solve problem 4 from your set if you paste it here.
• Give a quick review of a “4”-related topic (e.g., properties of the number 4, square numbers, factoring 4, base-4 numeral system).
• Provide four practice problems on any topic you choose.

Tell me the topic and difficulty, or paste problem 4, and I’ll get started.