How math's 'hairy ball theorem' could explain bad hair days

Is math to blame for bad hair days? Before I answer that question, let me introduce the “hairy ball theorem. Yes, that's ...
Seeking Alpha

Central Limit Theorem (CLT) For Investors

What Is the Central Limit Theorem? The Central Limit Theorem (CLT) states that if you sample a data population enough times, then the means and standard deviations of the samples will approach a ...
Investopedia

Understanding Arrow's Impossibility Theorem: Definition, History, and Example

Daniel Liberto is a journalist with over 10 years of experience working with publications such as the Financial Times, The Independent, and Investors Chronicle. Robert Kelly is managing director of ...
Scientific American

What is Bayes's theorem, and how can it be used to assign probabilities to questions such as the existence of God? What scientific value does it have?

Chris Wiggins, an associate professor of applied mathematics at Columbia University, offers this explanation. A patient goes to see a doctor. The doctor performs a test with 99 percent ...
BBC

Pythagoras' theorem - Part 2

An understanding of how to use Pythagoras’ theorem to find missing sides in a right-angled triangle is essential for applying the theorem in different contexts. (3,1) is the coordinate that is 3 along ...
BBC

Key points about solving 2D and 3D problems using Pythagoras' theorem

If the sides of the right-angled triangle are labelled 𝑎, 𝑏 and 𝑐 then Pythagoras' theorem can be written as the formula 𝑎² + 𝑏² = 𝑐². Pythagoras' theorem can be used to find the length of line ...
Scientific American

Bayes's Theorem: What's the Big Deal?

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American I’m not sure when I first heard of Bayes’ ...
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Thevenin’s theorem made easy — step-by-step circuit example

Understand Thevenin’s Theorem the easy way with a clear, step-by-step circuit example. Learn how to simplify complex electrical networks into an equivalent circuit, making analysis faster and ...