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Topic:
6÷2(1+2)= 1 or 9 ? [Locked] |
Fat_wong  Posts: 293
Registered: 2007-2-6 07:59:17
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Date Posted:
1/1/00 12:02am
Subject:
6÷2(1+2)= 1 or 9 ? |
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OH LOOK, IDIOTS
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Date Posted:
1/1/00 12:02am
Subject:
6÷2(1+2)= 1 or 9 ? |
Oh, I know what it is, Cawlin, but this board is the only place I've ever seen it or heard about it. The last time it came up I had to google it.
Your own link contains the answer, as far as I've been taught: if one strictly follows the standard order of operations...
Why would you do it any other way? A thousand years and more of math don't change because some calculator or textbook doesn't quite understand the rule, or because someone doesn't want to type out a set of parentheses.
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Cawlin  Posts: 1,759
Registered: 2005-2-22 07:58:42
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Date Posted:
1/1/00 12:02am
Subject:
6÷2(1+2)= 1 or 9 ? |
Eternal_Midnight posted:
Oh, I know what it is, Cawlin, but this board is the only place I've ever seen it or heard about it. The last time it came up I had to google it.
Your own link contains the answer, as far as I've been taught: if one strictly follows the standard order of operations...
Why would you do it any other way? A thousand years and more of math don't change because some calculator or textbook doesn't quite understand the rule, or because someone doesn't want to type out a set of parentheses.
I am not arguing FOR the "implied" multiplication thing, I'm just pointing out that THIS is the source of the ambiguity in the annotation of the problem...
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If ignorance were painful, half the posters here would be on morphine drips.
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Yukishiro1 Posts: 3,243
Registered: 2002-9-20 23:52:57
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Date Posted:
1/1/00 12:02am
Subject:
6÷2(1+2)= 1 or 9 ? |
Eternal_Midnight posted:
Clearly, you wouldn't write out a bunch of brackets for a fraction: you'd write a fraction.
I'm glad we've finally established that using a bunch of brackets and parentheses instead of just writing out your fraction is poor notation. I don't know quite why it took so long, but at least we're finally there.
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Date Posted:
1/1/00 12:02am
Subject:
6÷2(1+2)= 1 or 9 ? |
For 'fun' I checked my current math textbook; it makes no mention of this implied multiplication, either.
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We have not inherited the Earth from our parents, we have borrowed it from our children.
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Cawlin Posts: 1,759
Registered: 2005-2-22 07:58:42
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Date Posted:
1/1/00 12:03am
Subject:
6÷2(1+2)= 1 or 9 ? |
Eternal_Midnight posted:
For 'fun' I checked my current math textbook; it makes no mention of this implied multiplication, either.
I don't know where it came from man, I only had up to calc II and physics II in college. I am aware however, that people sort of get confused about when parentheses disappear and when they still apply - and that people mix their algebra rules with their basic math rules all the time.
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If ignorance were painful, half the posters here would be on morphine drips.
Everyone playing WoW knows everything about playing two classes: 1) their own and 2) Hunters
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Date Posted:
1/1/00 12:03am
Subject:
6÷2(1+2)= 1 or 9 ? |
I'm not necessarily saying it's incorrect, either.  I've just never seen it in my own math courses. I believe it is as a result of the digital age, and the difficulty in expressing certain things, like fractions, in code.
I guess I just don't understand why one would turn around and suggest that there is this thing called implied and explicit multiplication, when the math symbols already exist to write exactly what you mean. That's why I suggest that it's mostly people who don't really understand math rules who came up with it.
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We have not inherited the Earth from our parents, we have borrowed it from our children.
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Shimatta33  Posts: 142
Registered: 2003-11-19 23:55:28
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Date Posted:
1/1/00 12:03am
Subject:
6÷2(1+2)= 1 or 9 ? |
I can't fault the thread...it's a perfect troll thread that will bring out the dumb in some and the snob in others.
That being said the math is performed from left to right after the parenthesis are resolved. It's a basic order of operations question and yes it will be failed repeatedly by people with impressive titles.
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'tis an ill wind that blows no minds...
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Shimatta33 Posts: 142
Registered: 2003-11-19 23:55:28
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Date Posted:
1/1/00 12:03am
Subject:
6÷2(1+2)= 1 or 9 ? |
PS for future threads of this nature tinkles please include your GIF from last year:
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'tis an ill wind that blows no minds...
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Koneg  Title: Evil Genius
Posts: 894
Registered: 2001-12-4 15:31:28
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Date Posted:
1/1/00 12:03am
Subject:
6÷2(1+2)= 1 or 9 ? |
Eternal_Midnight posted:
If you are doing fractions, then WRITE IT AS A FRACTION. You don't use the division sign if you intended a fraction.
This is so /facepalm worthy I thought I'd just quote it and leave it entirely alone. 
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"Any sufficiently advanced idiocy is
indistinguishable from trolling." -- Arthur C Clarke
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