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Old 04-19-2011, 11:31 AM   #1
Ibby
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Quote:
Originally Posted by Undertoad View Post
Now, see, I would hold that Mathematics can't allow for anything "implied". It's either multiplication, or it isn't.
I agree with this, and also think the answer is 288. But there's at least some debate even among mathematicians about the legitimacy of implied multiplication.
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Old 04-19-2011, 11:40 AM   #2
skysidhe
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Quote:
Originally Posted by Undertoad View Post
Now, see, I would hold that Mathematics can't allow for anything "implied". It's either multiplication, or it isn't.
I don't think to extrapolate the problem was implied either.

I agree, when you solve it as it stands the answer is 288
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Old 04-19-2011, 11:25 AM   #3
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Thats a great response Ibram! I feel vindicated...thank you,
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Old 04-19-2011, 02:09 PM   #4
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Implied multiplication certainly looks like it should have higher precedence, but the idea that shorthand is actually a different operator is odd.
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Old 04-28-2011, 08:58 PM   #5
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ok, so lets try this again ...

6÷2(1+2)=?
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Old 04-29-2011, 09:44 AM   #6
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Originally Posted by classicman View Post
ok, so lets try this again ...

6÷2(1+2)=?
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Old 04-29-2011, 10:38 AM   #7
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4y÷2y=?

I certainly see the logic behind putting implied multiplication above regular multiplication and division in order of operations.
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Old 04-29-2011, 01:34 PM   #8
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Quote:
Originally Posted by Happy Monkey View Post
4y÷2y=?

I certainly see the logic behind putting implied multiplication above regular multiplication and division in order of operations.
That is one hell of an example. Goes to the root of the issue.
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Old 05-01-2011, 12:15 PM   #9
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Quote:
Originally Posted by Happy Monkey View Post
4y÷2y=?

I certainly see the logic behind putting implied multiplication above regular multiplication and division in order of operations.
The question is not whether it's logical. The question is whether it corresponds to the generally accepted interpretation of ordering the operators.
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Old 04-29-2011, 01:59 PM   #10
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"root"

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Old 04-30-2011, 10:17 PM   #11
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Even calculators can't be sure.


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Old 04-30-2011, 10:34 PM   #12
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Quote:
Originally Posted by Pete Zicato View Post
Even calculators can't be sure.
pls post a larger image, I can't quite see it........
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Old 05-01-2011, 12:20 PM   #13
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Quote:
Originally Posted by Pete Zicato View Post
Even calculators can't be sure.
Quote:
Originally Posted by Texas Instruments web site
Type: Question and Answer Last Updated: 16-JAN-2011 23:45:41
Does implied multiplication and explicit multiplication have the same precedence on TI graphing calculators?

Implied multiplication has a higher priority than explicit multiplication to allow users to enter expressions, in the same manner as they would be written. For example, the TI-80, TI-81, TI-82, and TI-85 evaluate 1/2X as 1/(2*X), while other products may evaluate the same expression as 1/2*X from left to right. Without this feature, it would be necessary to group 2X in parentheses, something that is typically not done when writing the expression on paper.

This order of precedence was changed for the TI-83 family, TI-84 Plus family, TI-89 family, TI-92 Plus, Voyage™ 200 and the TI-Nspire™ Handheld in TI-84 Plus Mode. Implied and explicit multiplication is given the same priority.

Please see the graphing calculator guidebooks for additional information.
(source, if this horrible URL isn't one-time only)
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