7 / 7 / 7 x 7 = ?
That depends. Please write it in proper mathematical notation.
To me that is pretty clear and obvious ...
Then please enlighten us, because to me - like Bj”rn - it is
ambiguous.
Seems pretty self explanatory using the order of operations. Oh wait,
you don't have to. Just go from left to right. :)
To me that is pretty clear and obvious ...
Then please enlighten us, because to me - like Bj”rn - it is ambiguous.
7 / 7 / 7 x 7 = ?
That depends.
Please write it in proper mathematical notation.
7 / 7 / 7 x 7 = ?
To me that is pretty clear and obvious ...
Then please enlighten us, because to me - like Bj”rn - it is ambiguous.
It's a silly kind of argumentation with the sole purpose of having an argument.
Seems pretty self explanatory using the order of operations. Oh wait,
you don't have to. Just go from left to right. :)
I guess you need higher mathematical education that just the
ordinary "never mind the rules, just use your calculator" to understand why this, and so many other crazy maths stuff circulating on the web, isn't what it appears to be.
Ah, you're one of those people. :)
Multiplication and division are on the same level in the order of operation (PEMDAS):
1) Parenthesis
2) Exponents
3) Multiplication AND Division
4) Addition AND Subtraction
No need to make it harder than it is, and also no need to add anything
to it. Just do it from left to right.
Multiplication and division are on the same level in the order of
operation (PEMDAS):
1) Parenthesis
2) Exponents
3) Multiplication AND Division
4) Addition AND Subtraction
Ah, you're one of those people. :)
Multiplication and division are on the same level in the order of
operation (PEMDAS):
1) Parenthesis
2) Exponents
3) Multiplication AND Division
4) Addition AND Subtraction
No need to make it harder than it is, and also no need to add anything
to it. Just do it from left to right.
In this case, it's *exactly* what it appears to be,
In this case, it's *exactly* what it appears to be,
Sigh. This is why so much crazy stuff circulates on the web.
With my proper mathematical notation comment, I meant to write it
like you would with a pen and pencil or on a blackboard.
Keyboard one-liners are not well suited for mathematical notation.
As Michiel explained, it needs some heavy use of parenthesises.
No parenthesis are needed in that line. *shrug*
So how do you differ
7
-
7
- -
7
... from
7
- -
7
-
7
... without parenthesis and/or the above picture with your keyboard notation then?
To a true, old school mathematician the two (rudimentary) pictures above need no effing rules to interpret.
It depends, is "-" minus, and "- -" division according to your
blackboard drawing
Björn Felten wrote to Michiel van der Vlist <=-
Michiel van der Vlist -> Ward Dossche skrev 2024-06-26 23:03:
MvdV> Then please enlighten us, because to me - like Björn - it is ambiguous.
I guess you need higher mathematical education that just the
ordinary "never mind the rules, just use your calculator" to understand why this, and so many other crazy maths stuff circulating on the web, isn't what it appears to be.
Really? Why would I write minus signs on separate lines?
Surely you understand that in those RUDIMENTARY pictures, it was supposed to be lines. For FTN reasons, I can't use three minus signs.
So, maybe now you can answer my question: How do you write the two different expressions in your keyboard one-line notation?
Surely you understand that in those RUDIMENTARY pictures, it was
supposed to be lines. For FTN reasons, I can't use three minus signs.
This doesn't answer my question, if my guesses were even correct.
This doesn't answer my question, if my guesses were even correct.
Incredible. Well, I'll try with longer lines then, so you can understand my answer:
One underscore, two, or three. Doesn't matter. A shorter line makes me guess subtraction, a longer line makes me guess division. I don't know what you're trying to do, but if it's something you're whipping up from 40+ years ago, I've already lost interest.
I guess you never got to fractions at school. May I recommend some
reading about numerators and denominators?
Still no parenthesis needed. Knowing the order of operations, one knows to do division before subtraction. However, if #1 was written like this, it would have a different result because parenthesis goes before division, which I'm sure you understand - being an old school mathematician and all:
(7 - 7) / 7 = 0
Whether it be PEMDAS, BEDMAS, BOMDAS, whatever abbreviation Michiel used, and whatever else is out there, they're all just acronyms for the "order of
operations", which never changes.
From what I've noticed, some countries call parenthesis brackets (I don't know why), where we call "[]" brackets. So the acronym changes to fit whatever country and however they learned the order of operations.
Either way, the actual "order of operations" stays the same.
Maybe the world shouldn't have made up different acronyms for it - as that obviously led to a lot of confusion, but there's nothing we can do about the past, except to try to stay on the right track in the future.
Ward Dossche wrote to Not To Anyone Specific ... <=-
I guess you never got to fractions at school. May I recommend some
reading about numerators and denominators?
Please be aware of #18 in the set of "Dossche's Laws"..
"Abandon any on-line discussion which stretches beyond 2 cycles. If
more time is needed it will lead nowhere"
Nicholas Boel wrote to Björn Felten <=-
Incredible. Well, I'll try with longer lines then, so you can understand my answer:
If my original guess wasn't correct, just say so. You seem to be trying
to lead me into an abyss I don't care to go to.
One underscore, two, or three. Doesn't matter. A shorter line makes me guess subtraction, a longer line makes me guess division. I don't know what you're trying to do, but if it's something you're whipping up from 40+ years ago, I've already lost interest.
The order of operations is constant. Whether you interpret it
differently from most others (in many languages) is your problem, not mine.
I guess you never got to fractions at school. May I recommend some
reading about numerators and denominators?
Please be aware of #18 in the set of "Dossche's Laws"..
"Abandon any on-line discussion which stretches beyond 2 cycles. If more time is needed it will lead nowhere"
He's doing what he always does. Trying to show that he's "clever", and failing miserably.
6 ÷ 2 (1 + 2) = ?
Go ahead. Solve the problem yourself. It is not that hard.
The correct answer is 9. Or is it?
Prior to 1917, the correct answer is 1.
So which answer is correct?
Since nobody wrote the rules, it is whatever goes.
Nicholas Boel wrote to Lee Lofaso <=-
Since nobody wrote the rules, it is whatever goes.
Here's some nice pictures for you:
https://i.pinimg.com/736x/12/fb/22/12fb223973fc3ff2ae9e831fca94e1ee.jpg
This is some 5th and 6th grade stuff we're going on about here, but I suppose it's a bit more interesting than the echo having no activity whatsoever for a week.
Please add a Corollary to this Law that modifies it to only ONE cycle of conversation if said conversation is with a person named Beeeeeorn in a FidoNet echo.
Whether it be PEMDAS, BEDMAS, BOMDAS, whatever abbreviation Michiel used, and whatever else is out there, they're all just acronyms for the "order of operations", which never changes.
https://www.youtube.com/watch?v=IaD3kGSxaVs
It's just that I was taken by surprise to see that someone could actually confuse a fraction symbol - the horizontal line - with a minus operator.
6 ö 2 (1 + 2) = ?
Go ahead. Solve the problem yourself. It is not that hard.
The correct answer is 9. Or is it?
Correct, when following the order of operations.
Prior to 1917, the correct answer is 1.
So which answer is correct?
Apparantly, prior to 1917, they didn't read from left to right?
Since nobody wrote the rules, it is whatever goes.
Here's some nice pictures for you:
This is some 5th and 6th grade stuff we're going on about here, but I suppose it's a bit more interesting than the echo having no activity whatsoever for a week.
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