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Re: the math problem [Re: Rock Chuck] #14017532 08/01/19
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Bob_H_in_NH Offline
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wouldn't rpn come out to 2,2+8,2,/,* which is 16 (Been awhile since I dealt with RPN!)

The only ambiguity is the lack of a * time, it's implied, or is an exponent?

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Re: the math problem [Re: Bob_H_in_NH] #14017562 08/01/19
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Pugs Offline
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Originally Posted by Bob_H_in_NH
wouldn't rpn come out to 2,2+8,2,/,* which is 16 (Been awhile since I dealt with RPN!)

The only ambiguity is the lack of a * time, it's implied, or is an exponent?



2 ent 2+ 2* 2/ right to left = 1. I reserve the right to be wrong but that's the way I worked it.


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Re: the math problem [Re: Pugs] #14017572 08/01/19
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Originally Posted by Pugs
Originally Posted by Rock Chuck
Here's one of the comments from the article:

8÷2X(2+2) = 16
8÷2(2+2) = 1
Final answer.
People who are poor in math will add that multiplication sign in their delusional minds and then follow PODMAS to come up with 16
People who are proficient in math will not add that multiplication sign and still follow PODMAS exactly and come up with 1.


People like me who are stuck on RPN come up with 1 too. grin

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Re: the math problem [Re: Rock Chuck] #14017574 08/01/19
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Man, you guys are speaking another language right now.


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Re: the math problem [Re: Rock Chuck] #14017581 08/01/19
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mathman Offline
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2(...) The 2 adjacent to the parentheses means 2 times (...). Explicitly written it's 2*(...)

The (2+2) "parentheses object" is 4.

So written out it's 8 / 2 * 4.

These operations are on the same footing, so are evaluated in order, left to right. 8/2 = 4, so now we have 4 * 4 = 16.

An earlier poster declaring "2 times 4" to be in the denominator effectively inserts parentheses that weren't there, as in 8/(2*4), or 8/(2(2+2)).


"In the real world, think of the 6.5 Creedmoor as the modernized/standardized/optimized version of the 6.5x55/.260." John Barsness 2019
Alpha

Re: the math problem [Re: Rock Chuck] #14017610 08/01/19
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................ laugh

Last edited by BillyGoatGruff; 08/01/19.
Re: the math problem [Re: mathman] #14017631 08/01/19
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Originally Posted by mathman
2(...) The 2 adjacent to the parentheses means 2 times (...). Explicitly written it's 2*(...)

The (2+2) "parentheses object" is 4.

So written out it's 8 / 2 * 4.

These operations are on the same footing, so are evaluated in order, left to right. 8/2 = 4, so now we have 4 * 4 = 16.

An earlier poster declaring "2 times 4" to be in the denominator effectively inserts parentheses that weren't there, as in 8/(2*4), or 8/(2(2+2)).


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Re: the math problem [Re: Fireball2] #14017644 08/01/19
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kingston Offline
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Originally Posted by Fireball2
1.



=1+15

Re: the math problem [Re: Rock Chuck] #14017645 08/01/19
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persiandog Offline
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Re: the math problem [Re: mathman] #14017689 08/01/19
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RufusG Online Content
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Originally Posted by mathman
2(...) The 2 adjacent to the parentheses means 2 times (...). Explicitly written it's 2*(...)

.....

An earlier poster declaring "2 times 4" to be in the denominator effectively inserts parentheses that weren't there, as in 8/(2*4), or 8/(2(2+2)).


Didn't you just insert an asterisk that wasn't there?

Bravo

Re: the math problem [Re: persiandog] #14017697 08/01/19
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denton Online Content
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Partly, the answer depends on whether you are doing programming or doing math.

The divisor bar also carries implicit parentheses. The expression could properly and unambiguously be written

8÷[2(2+2)] so that 2(2+2) all appears under the divisor bar. Lacking easy graphics, I've used [] to indicate the implicit parentheses of the divisor bar.

In programming, the expression could be interpreted as

8/2*4.

Last edited by denton; 08/01/19.

When any government, or any church for that matter, undertakes to say to its subjects, This you may not read, this you must not see, this you are forbidden to know, the end result is tyranny and oppression, no matter how holy the motives. –Heinlein
Re: the math problem [Re: RufusG] #14017699 08/01/19
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mathman Offline
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Originally Posted by RufusG
Originally Posted by mathman
2(...) The 2 adjacent to the parentheses means 2 times (...). Explicitly written it's 2*(...)

.....

An earlier poster declaring "2 times 4" to be in the denominator effectively inserts parentheses that weren't there, as in 8/(2*4), or 8/(2(2+2)).


Didn't you just insert an asterisk that wasn't there?


The asterisk indicates a multiplication that's already there, just to make it stick out like a sore thumb. It does not change the meaning or grouping of terms.

The extra inserted parentheses do change meaning/grouping.


"In the real world, think of the 6.5 Creedmoor as the modernized/standardized/optimized version of the 6.5x55/.260." John Barsness 2019
Re: the math problem [Re: Rock Chuck] #14017703 08/01/19
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Valsdad Offline
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confused confused confused confused

My friend Charlie, and I agree with him many times says...............









Stihl.


Geno

PS, when I was taught, by Catholic nuns (Sisters of St Joseph of Orange order), the answer most likely would have been 1.

PPS of course, we had a few lay teachers there too, so it may have been 16


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In it is contentment
In it is death and all you seek
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Re: the math problem [Re: RufusG] #14017705 08/01/19
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BLG Offline
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Originally Posted by RufusG
Originally Posted by mathman
2(...) The 2 adjacent to the parentheses means 2 times (...). Explicitly written it's 2*(...)

.....

An earlier poster declaring "2 times 4" to be in the denominator effectively inserts parentheses that weren't there, as in 8/(2*4), or 8/(2(2+2)).


Didn't you just insert an asterisk that wasn't there?



He was just trying to clarify what 2( means.

Clyde


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Re: the math problem [Re: denton] #14017709 08/01/19
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Valsdad Offline
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Originally Posted by denton
Partly, the answer depends on whether you are doing programming or doing math.

The divisor bar also carries implicit parentheses. The expression could properly and unambiguously be written

8÷[2(2+2)] so that 2(2+2) all appears under the divisor bar, where [] indicates the implicit parentheses of the divisor bar.

In programming, the expression could be interpreted as

8/2*4.



WWSS?


(What would Spock say ?)

Geno

PS I sure wish they had posed this question on the Big Bang Theory before the final episode. Sheldon would have settled it.


The desert is a true treasure for him who seeks refuge from men and the evil of men.
In it is contentment
In it is death and all you seek
(Quoted from "The Bleeding of the Stone" Ibrahim Al-Koni)

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Re: the math problem [Re: Rock Chuck] #14017721 08/01/19
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nighthawk Offline
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But what is the answer in Baltimore?


You are in a maze of twisty little passages, all alike.
Re: the math problem [Re: Rock Chuck] #14017739 08/01/19
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Valsdad Offline
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Upon further review, and consultation with others I have come to the conclusion the answer is



Settled!

Geno


The desert is a true treasure for him who seeks refuge from men and the evil of men.
In it is contentment
In it is death and all you seek
(Quoted from "The Bleeding of the Stone" Ibrahim Al-Koni)

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Re: the math problem [Re: Rock Chuck] #14017762 08/01/19
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nighthawk Offline
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laugh Forgot about that.


You are in a maze of twisty little passages, all alike.
Re: the math problem [Re: Rock Chuck] #14017776 08/01/19
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It is interesting now days, when you tell someone to do the math, they look at you like your some kind of alien. I do this routinely including at my work where we have to do some math occasionally. The youngsters look at me like I am nuts or asking them to do something they should not have to do. I jokingly asked a young engineer once to calculate how many ping pong balls it would take to lift the Titanic off the bottom of the ocean and get it to the surface, by god she liked math and went home and came back the next morning with the answer. She showed me her math (way over my head) so I don't know if she was correct or not, but I give her credit.

Re: the math problem [Re: Rock Chuck] #14017824 08/01/19
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Valsdad Offline
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I still have never figured out.............................


How much wood

could a woodchuck chuck

if a woodchuck could

chuck wood?


Geno

PS 42? cords? logs? sticks?


The desert is a true treasure for him who seeks refuge from men and the evil of men.
In it is contentment
In it is death and all you seek
(Quoted from "The Bleeding of the Stone" Ibrahim Al-Koni)

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