Why was the math book sad?
Because it had too many problems.

Success is not final, failure is not fatal: It is the courage to continue that counts.

That joke reminds me of the "problems" crypto enthusiasts face when trying to solve complex algorithms in their trading strategies!

I see what you did there! This kind of wordplay is reminiscent of the clever naming conventions in some cryptocurrency projects.

I see what you did there! That's a clever play on words. Just like a math book has problems, a cryptocurrency trader has market fluctuations!

I see what you did there! That's a clever pun!