Algebra

B.E.D.M.A.S.

Almost everything that surrounds us is a result of a process, and every process has certain rules. Rules make this world go round, and even though I’m a person who tends to live outside them, I still have to follow some of them in order to get by. Today I’m gonna talk about the first rules we learn in Maths: the BEDMAS (Brackets, Exponents, Division & Multiplication, Adition & Substraction) aka BODMAS aka PEDMAS (depends on the synonyms for Brackets and Exponents).

The rules simply say that first we start with things inside the brackets, then move onto exponents. Multiplication and division are all done at the same time, starting from the left and moving to the right. Then comes adition and substraction – again, these are done in the same time, starting from the left and moving to the right. Higher functions, such as logarithms and trigonometric functions, happen at the exponent level.

The levels make sense if you think about the operations that are performed. Adition is the most basic operation – the first we learn. Multiplication is really just successive aditions; that is to say, ‘two times five’ is really two added to itself five times. Next, an exponent just represents successive multiplications.

So, as you can see, as we move through the order of operations, we move towards ever more simple operations.

Sometimes we have to deal with nested brackets. Well, it’s no worry, we deal with them at a time, starting from the inside out.

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Algebra, Analysis, General, Geometry

An Introduction.

Words have never come easy for me, they only made sense when I’ve read them written by someone else. This is one of the reasons I’ve been attracted to Science. Unfortunately Science covers a wide range of subjects such as Physics, Chemistry and many others related to them. I’m an Aries, so obviously I wanted to top all those classes, and I did, but couldn’t discover them in depth. So I focused on studying the language that connects all the Science fields: Maths. One can study Physics/Chemistry all his life, but without this irreplaceable tool you get nowhere. Even Einstein had the help of Max Planck (well-known german physicist) when he developed the Relativity Theory, because it was known that Maths wasn’t one of his strenghts.

Mathematics means many things to many people. Most see it as a daunting subject, whether you try to solve an ecuation or add up the bills, almost every time you end up with a headache. But for the others it represents the beauty of the universe. An English Matematician and philosopher, described it as “the most original creation of the human spirit”.

Maths has been described in many ways: the science of numbers and magnitude, the science of patterns and relationships or the language of science. Galileo claimed that “The Laws of Nature are written in the language of mathematics”. Very very true! Just by seeing the award winning movie “A Beautiful Mind”, we can see how Maths apply in the day-to-day activities. Unfortunately, neither the media or the books cover the most important part of it: it’s root, it’s history, the place it came from! I’ve been asked more than once by my pupils who discovered the numbers and the operations, and I was ashamed to admit that I didn’t have a clue, no one ever told me and I didn’t even ask myself. So my future posts will come to help your curiosities and maybe widen your horizons. Cheers 😉

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