Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Pastimes : Laughter is the Best Medicine - Tell us a joke -- Ignore unavailable to you. Want to Upgrade?

To: Jeffrey S. Mitchell who wrote (61641)	12/9/2022 6:49:38 PM
From: Sun Tzu	Read Replies (1) \| Respond to of 62549

I could derive it with set theory, but I always prefer to start with an intuitive approach. E.g. consider the math puzzle 2^x = x^2. It is quite challenging to solve with math. But intuitively it is obvious that x=2 and x=4 are the two natural answers (there is also a 3rd answer, but not natural or satisfying). Back to your puzzle...since the person could only count and flip, the only possible answer was to count 30 coins and flip them. That was the intuitive answer, which we can then validate with math. Here's another intuitive answer that I felt I had to provide because the author was the exact opposite of what he claims to be: Sine and Cosine are orthogonal to each other because they are projections of the same motion on orthogonal axis. This is the intuitive answer. Using algebraic properties to remove all intuitive sense out of something and turn it into an abstraction is why many kids hate math. — Archer (@WallSt_SunTzu) December 9, 2022