7 / 7 / 7 x 7 = ?
That depends. Please write it in proper mathematical notation.
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 BjÃ¶rn  it is ambiguous.
To me that is pretty clear and obvious ...
Then please enlighten us, because to me  like Björn  it is ambiguous.
7 / 7 / 7 x 7 = ?
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.
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
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 oneliners 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.
7 / 7 / 7 x 7 = ?
7 / 7 / 7 x 7 = ?
That depends. Please write it in proper mathematical notation.
To me that is pretty clear and obvious ...
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 Björn  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. :)
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 Björn  it is ambiguous.
It's a silly kind of argumentation with the sole purpose of having an argument.
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.
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,
It depends, is "" minus, and " " division according to your
blackboard drawing
Bj÷rn Felten wrote to Michiel van der Vlist <=
Michiel van der Vlist > Ward Dossche skrev 20240626 23:03:
MvdV> Then please enlighten us, because to me  like Bj÷rn  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 oneline 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 online discussion which stretches beyond 2 cycles. If
more time is needed it will lead nowhere"
Nicholas Boel wrote to Bj÷rn 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 online 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 Ã· 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 ÷ 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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