Pi is an irrational number, which means that it is a real number that cannot be expressed by a simple fraction. That's because pi is what mathematicians call an "infinite decimal" — after the decimal point, the
cult of history as progress reached its peak in late 19th century when British power & confidence is at its height. Ex: Acton.Nicholas I of Russia is said to have issued an order banning the word ‘progress’: nowadays the philosophers and historians of western Europe, and even the United ...
The sunk cost fallacy is the belief that you should keep hanging on because of the resources you've already invested. It's an irrational decision because the time and money you've spent is already gone. But you're giving the past more weight than the future outcome. If the stock you pa...
How public key cryptography really works, using only simple math How do we know pi is an irrational number? History of prime numbers Prime numbers have been studied for thousands of years. Euclid's "Elements," published about 300 B.C., proved several results about prime numbers. In Book...
A statistic is a number that represents a property of the sample. For example, if we consider one math class to be a sample of the population of all math classes, then the average number of points earned by students in that one math class at the end of the term is an example...
2.2 The discussion turns from blocking the new area to an investigation about how it is supposed to work. Fortune:: Let me try to explain it another way. Nana, this largest number you imagine, what would be its last digit? Nana:: 9. Fortune:: Fine, and the second last? Nana:: Ag...
I am about to make things more complicated by suggesting that what kind of facility an older person lives in may matter less than we have assumed. 出自-2016年6月阅读原文 Determine what is moral and ethical. 出自-2016年6月阅读原文 But what effect does your personality have on your longevity...
The concept of a relativity trap is an example of theanchoringeffect, a cognitive bias that describes when an individual relies on or fixates on an initially available piece of data or information in the decision-making process.2Often, the first number we see clouds our perception of everythin...
“My work is in harmony with the other activities in my life”, “The new things that I discover with my work allow me to appreciate it even more”, “My work reflects the qualities I like about myself”, and “My work allows me to live a variety of experiences”. An exemplary ...
How do we know pi is an irrational number? 'Cosmic tornadoes', surprises from ancient Egypt and more. Fibonacci sequence history The first thing to know is that the sequence is not originally Fibonacci's, who in fact never went by that name. The Italian mathematician who we call Leonardo ...