23 Mathematical Challenges! - Not for everyone, of course.
Go to the following location at your risk. The challenges in the following PDF will spin your brain and skull in opposite directions.
You've been warned:
<a href="https://www.darpa.mil/dso/personnel/23_math_chall_b_mann.pdf" target="_blank" rel="noopener noreferrer">PDF</a>
You've been warned:
<a href="https://www.darpa.mil/dso/personnel/23_math_chall_b_mann.pdf" target="_blank" rel="noopener noreferrer">PDF</a>
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