Trigonometry I'll never use that.

[Wafer]

Mmm, not sure "easier" is that good a description if you can get different answers

No, if brackets are used correctly it's easy, you process them first. Only if brackets aren't used is there a risk.

You can say I was taught wrong if you want, it's what I and the people I was at school with were taught in maths lessons. So guess what will happen if you rely on bodmas for calculations when people have been taught differently...

 

[Profpointy]

No, if brackets are used correctly it's easy, you process them first. Only if brackets aren't used is there a risk.

You can say I was taught wrong if you want, it's what I and the people I was at school with were taught in maths lessons. So guess what will happen if you rely on bodmas for calculations when people have been taught differently...

If I may use an analogy if someone was taught that Poland was in Africa, it would simply be wrong. You wouldn't teach writers to say Poland Europe to avoid mistakes

 

[Wafer]

BODMAS is a set of rules, a set different to the rules I was taught. It's not a fact.

 

[Profpointy]

BODMAS is a set of rules, a set different to the rules I was taught. It's not a fact.

Maybe it's a definition rather than a fact.

If you were taught different rules, it would be akin to being taught that 5x3 = 8 and 5+3 = 15
This would is a different sent of rules for arithmetic, which you could build a system out of, but not exactly helpful

 

[nickyboy]

I watched a TV show a couple of years ago. Celebs in some Arctic land or other. One "test" they had to do was to calculate the answer to some maths problem like 5+4x6-3=?

They all just calculated it L to R, gave 51 as the answer, and were told they were correct and had passed the challenge. I got told off by Mrs N for being a pedantic maths nobber and taking a reality TV show a tad too seriously

 

[Wafer]

Multiplication and addition are a little more fundamental than BODMAS.....
It's not like there is only BODMAS https://en.wikipedia.org/wiki/Order_of_operations#Calculators

 

[Nibor]

I think the original poster is being obtuse.

In what way if you mean Blunt you don't get much blunter than a 21 stone bloke from Accrington. Socahtoa doesn't work on obtuse angles.

 

[Nibor]

It's marginally better than be called a cute bloke from Accrington

(no offence meant by the way )

If I was given to taking offence I would certainly be on the wrong forum. LOL

 

[marinyork]

Maybe it's a definition rather than a fact.

If you were taught different rules, it would be akin to being taught that 5x3 = 8 and 5+3 = 15
This would is a different sent of rules for arithmetic, which you could build a system out of, but not exactly helpful

BODMAS is a convention.

Things like addition is associative, and also commutative, are axioms (or equivalent axioms) of Peano Arithmetic.

Most human beings don't have any problems with seeing that in what we loosely call arithmetic, subtraction 'is' left associative.

Not sure where your fear of brackets and equivalent of being a grammar nazi came from. You need to drag those semigroup lecture notes out and stop having a whinge at other people!

 

[Firestorm]

Oliver Had
A Handful
Of Apples

was how I learned that.

What I really want to know was why did I get caned for stealing apples when it was Oliver all along

Due to mixing with a rather odd group , we remember it as
Two Orange Aliens
Carrying A Handbag
Sit On Hedges

bloody weird but its stuck for 44 years

As for colours of the spectrum
Richard of York gained Belfast in Vomit

Said we were weird

 

[MartinQ]

I was trying to solve a quadratic equation while riding up a 20% climb the other day ...

I remembered that if a*x*x + b*x + c = 0 then x = (-b +or- Sqrt (b*b - 4*a*c))/(2*a).

Unfortunately, I couldn't calculate (-2.976 +or- Sqrt (2.976*2.976 - 4*11.281*37.336))/(2*11.281) in my head while grovelling uphill!

Your route must have been complex.

 

[Profpointy]

Multiplication and addition are a little more fundamental than BODMAS.....
It's not like there is only BODMAS https://en.wikipedia.org/wiki/Order_of_operations#Calculators

not the same thing at all

BODMAS is a convention.

Things like addition is associative, and also commutative, are axioms (or equivalent axioms) of Peano Arithmetic.

Most human beings don't have any problems with seeing that in what we loosely call arithmetic, subtraction 'is' left associative.

Not sure where your fear of brackets and equivalent of being a grammar nazi came from. You need to drag those semigroup lecture notes out and stop having a whinge at other people!

sorry, but I don't know what a semigroup is

 

[ANT 666]

The one I remember is
Two and quarter pounds of jam
Weigh about a kilogram.

 

[nickyboy]

The one I remember is
Two and quarter pounds of jam
Weigh about a kilogram.

A pint of cold water weighs a pound and a quarter

(according to my Mum)

 

[glasgowcyclist]

It's marginally better than be called a cute bloke from Accrington

(no offence meant by the way )

I think you're going off on a tangent.

GC