## Search results

1. ### Maths in a minute: The central limit theorem

The central idea in statistics is that you can say something about a whole population by looking at a smaller sample. Without this idea there ... reply Where's the maths? Permalink Submitted by Anonymous on April 20, ...

Marianne - 16 Jan 2019 - 11:59 - 2 comments

2. ### Who's watching: Can maths exist if you can't see it?

In our Who's watching project we have been exploring the physics of observers. But observations also play a role in mathematics. We often get ideas about general results in mathematics ... sequences of rational numbers. Maths in a minute: Truth tables — A quick look at those indispensable tools ...

Marianne - 17 Jan 2019 - 11:22 - 0 comments

3. ### Maths in a minute: Number mysteries

... the mathematician Christian Goldbach who formulated it in the middle of the eighteenth century. It states that any even natural number ... even number is the sum of at most six primes. There is a similar statement, called the weak Goldbach conjecture, which says that every ...

Marianne - 2 Jan 2019 - 14:07 - 3 comments

4. ### Maths in a minute: Perfect numbers

A perfect number is a natural number whose divisors add up to the number ... the number 6 is the reason why god chose to create the world in 6 days, taking a rest on the 7th. The Greek Nicomachus of Gerasa ... to help us find them. The largest so far, discovered in December 2018, has over 49 million digits. Will we ever find another ...

Marianne - 2 Jan 2019 - 13:59 - 0 comments

5. ### Maths in a minute: Truth tables

In standard mathematical logic every statement — "the cat is white", "the dog ... Q are true, otherwise it is false. This can be summarised in a truth table: P Q P AND Q T T T ...

Marianne - 18 Dec 2018 - 16:25 - 0 comments

6. ### Maths in a minute: Transcendental numbers (and politics)

... numbers? Transcendental numbers are defined in contrast to algebraic numbers : we say that a number is algebraic if it ... number is transcendental: take for example (see Maths in a minute: The square root of 2 is irrational ). Probably the ...

Marianne - 28 Nov 2018 - 15:04 - 3 comments

7. ### Maths in a minute: Binary numbers

... works. Let's take the number 4302 as an example. The digit 4 in this number doesn't stand for the number 4, rather it stands for 4000, or 4 ... 100 = 10 2 10 = 10 1 1 = 10 0 . To write a number in decimal notation, you first write it as a sum of consecutive powers ...

Marianne - 5 Nov 2018 - 14:18 - 0 comments

8. ### Happy birthday Claude Shannon!

... mouse Theseus, one of the earliest experiments in artificial intelligence. (Image Copyright 2001 Lucent Technologies, Inc. All ... work on sending information through noisy channels. Maths in a minute: Boolean algebra , which gives some more details on rules ...

Marianne - 30 Oct 2018 - 17:07 - 1 comment

9. ### Maths in a minute: Chomp

Chomp is a simple game with a surprising mathematical twist. The rules are as follows. ... bottom left cookie is poisoned. Two players take it in turn to "chomp" — that is, to eat one of the remaining cookies, plus all ... and to the right of that cookie. Possible moves in Chomp. The loser is the player who has to eat the poisoned cookie. ...

Marianne - 1 Aug 2018 - 14:33 - 2 comments

10. ### Maths in a minute: Black holes

... Black holes are formed when a lot of mass is concentrated in a tiny region of space. For example, if we managed to concentrate all the ... stars, can warp the very fabric of space and time (see Maths in a minute: Einstein's theory of general relativity ). The warping of ...

Rachel - 26 Jul 2018 - 22:52 - 0 comments