What Is a Black Swan?
A BS is an unpredictable event that is beyond what is normally expected of a situation and has potentially severe consequences.
BS events are characterized by their extreme rarity, severe impact, and the widespread insistence they were obvious in hindsight.
1. function shows : critical points 1/(asqrt(2pi))e^{(-(x-pi)^2)/(2a^2)}
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critical points 1/(asqrt(2pi))e^{(-(x-pi)^2)/(2a^2)} - Symbolab
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